|
""" |
|
VGG( |
|
(features): Sequential( |
|
(0): Conv2d(3, 64, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1)) |
|
(1): ReLU(inplace=True) |
|
(2): Conv2d(64, 64, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1)) |
|
(3): ReLU(inplace=True) |
|
(4): MaxPool2d(kernel_size=2, stride=2, padding=0, dilation=1, ceil_mode=False) |
|
(5): Conv2d(64, 128, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1)) |
|
(6): ReLU(inplace=True) |
|
(7): Conv2d(128, 128, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1)) |
|
(8): ReLU(inplace=True) |
|
(9): MaxPool2d(kernel_size=2, stride=2, padding=0, dilation=1, ceil_mode=False) |
|
(10): Conv2d(128, 256, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1)) |
|
(11): ReLU(inplace=True) |
|
(12): Conv2d(256, 256, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1)) |
|
(13): ReLU(inplace=True) |
|
(14): Conv2d(256, 256, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1)) |
|
(15): ReLU(inplace=True) |
|
(16): MaxPool2d(kernel_size=2, stride=2, padding=0, dilation=1, ceil_mode=False) |
|
(17): Conv2d(256, 512, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1)) |
|
(18): ReLU(inplace=True) |
|
(19): Conv2d(512, 512, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1)) |
|
(20): ReLU(inplace=True) |
|
(21): Conv2d(512, 512, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1)) |
|
(22): ReLU(inplace=True) |
|
(23): MaxPool2d(kernel_size=2, stride=2, padding=0, dilation=1, ceil_mode=False) |
|
(24): Conv2d(512, 512, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1)) |
|
(25): ReLU(inplace=True) |
|
(26): Conv2d(512, 512, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1)) |
|
(27): ReLU(inplace=True) |
|
(28): Conv2d(512, 512, kernel_size=(3, 3), stride=(1, 1), padding=(1, 1)) |
|
(29): ReLU(inplace=True) |
|
(30): MaxPool2d(kernel_size=2, stride=2, padding=0, dilation=1, ceil_mode=False) |
|
) |
|
(avgpool): AdaptiveAvgPool2d(output_size=(7, 7)) |
|
(classifier): Sequential( |
|
(0): Linear(in_features=25088, out_features=4096, bias=True) |
|
(1): ReLU(inplace=True) |
|
(2): Dropout(p=0.5, inplace=False) |
|
(3): Linear(in_features=4096, out_features=4096, bias=True) |
|
(4): ReLU(inplace=True) |
|
(5): Dropout(p=0.5, inplace=False) |
|
(6): Linear(in_features=4096, out_features=1000, bias=True) |
|
) |
|
) |
|
""" |
|
|
|
import itertools |
|
import json |
|
from typing import Any, List, NamedTuple, Optional, Tuple, Union, Callable |
|
import glob |
|
import importlib |
|
import inspect |
|
import time |
|
import zipfile |
|
from diffusers.utils import deprecate |
|
from diffusers.configuration_utils import FrozenDict |
|
import argparse |
|
import math |
|
import os |
|
import random |
|
import re |
|
|
|
import diffusers |
|
import numpy as np |
|
|
|
import torch |
|
from library.device_utils import init_ipex, clean_memory, get_preferred_device |
|
init_ipex() |
|
|
|
import torchvision |
|
from diffusers import ( |
|
AutoencoderKL, |
|
DDPMScheduler, |
|
EulerAncestralDiscreteScheduler, |
|
DPMSolverMultistepScheduler, |
|
DPMSolverSinglestepScheduler, |
|
LMSDiscreteScheduler, |
|
PNDMScheduler, |
|
DDIMScheduler, |
|
EulerDiscreteScheduler, |
|
HeunDiscreteScheduler, |
|
KDPM2DiscreteScheduler, |
|
KDPM2AncestralDiscreteScheduler, |
|
|
|
StableDiffusionPipeline, |
|
) |
|
from einops import rearrange |
|
from tqdm import tqdm |
|
from torchvision import transforms |
|
from transformers import CLIPTextModel, CLIPTokenizer, CLIPModel, CLIPTextConfig |
|
import PIL |
|
from PIL import Image |
|
from PIL.PngImagePlugin import PngInfo |
|
|
|
import library.model_util as model_util |
|
import library.train_util as train_util |
|
from networks.lora import LoRANetwork |
|
import tools.original_control_net as original_control_net |
|
from tools.original_control_net import ControlNetInfo |
|
from library.original_unet import UNet2DConditionModel, InferUNet2DConditionModel |
|
from library.original_unet import FlashAttentionFunction |
|
from library.utils import GradualLatent, EulerAncestralDiscreteSchedulerGL |
|
|
|
from XTI_hijack import unet_forward_XTI, downblock_forward_XTI, upblock_forward_XTI |
|
from library.utils import setup_logging, add_logging_arguments |
|
|
|
setup_logging() |
|
import logging |
|
|
|
logger = logging.getLogger(__name__) |
|
|
|
|
|
SCHEDULER_LINEAR_START = 0.00085 |
|
SCHEDULER_LINEAR_END = 0.0120 |
|
SCHEDULER_TIMESTEPS = 1000 |
|
SCHEDLER_SCHEDULE = "scaled_linear" |
|
|
|
|
|
LATENT_CHANNELS = 4 |
|
DOWNSAMPLING_FACTOR = 8 |
|
|
|
|
|
|
|
|
|
CLIP_MODEL_PATH = "laion/CLIP-ViT-B-32-laion2B-s34B-b79K" |
|
FEATURE_EXTRACTOR_SIZE = (224, 224) |
|
FEATURE_EXTRACTOR_IMAGE_MEAN = [0.48145466, 0.4578275, 0.40821073] |
|
FEATURE_EXTRACTOR_IMAGE_STD = [0.26862954, 0.26130258, 0.27577711] |
|
|
|
VGG16_IMAGE_MEAN = [0.485, 0.456, 0.406] |
|
VGG16_IMAGE_STD = [0.229, 0.224, 0.225] |
|
VGG16_INPUT_RESIZE_DIV = 4 |
|
|
|
|
|
NUM_CUTOUTS = 4 |
|
USE_CUTOUTS = False |
|
|
|
|
|
""" |
|
高速化のためのモジュール入れ替え |
|
""" |
|
|
|
|
|
def replace_unet_modules(unet: diffusers.models.unet_2d_condition.UNet2DConditionModel, mem_eff_attn, xformers, sdpa): |
|
if mem_eff_attn: |
|
logger.info("Enable memory efficient attention for U-Net") |
|
|
|
|
|
unet.set_use_memory_efficient_attention(False, True) |
|
elif xformers: |
|
logger.info("Enable xformers for U-Net") |
|
try: |
|
import xformers.ops |
|
except ImportError: |
|
raise ImportError("No xformers / xformersがインストールされていないようです") |
|
|
|
unet.set_use_memory_efficient_attention(True, False) |
|
elif sdpa: |
|
logger.info("Enable SDPA for U-Net") |
|
unet.set_use_memory_efficient_attention(False, False) |
|
unet.set_use_sdpa(True) |
|
|
|
|
|
|
|
def replace_vae_modules(vae: diffusers.models.AutoencoderKL, mem_eff_attn, xformers, sdpa): |
|
if mem_eff_attn: |
|
replace_vae_attn_to_memory_efficient() |
|
elif xformers: |
|
replace_vae_attn_to_xformers() |
|
elif sdpa: |
|
replace_vae_attn_to_sdpa() |
|
|
|
|
|
def replace_vae_attn_to_memory_efficient(): |
|
logger.info("VAE Attention.forward has been replaced to FlashAttention (not xformers)") |
|
flash_func = FlashAttentionFunction |
|
|
|
def forward_flash_attn(self, hidden_states, **kwargs): |
|
q_bucket_size = 512 |
|
k_bucket_size = 1024 |
|
|
|
residual = hidden_states |
|
batch, channel, height, width = hidden_states.shape |
|
|
|
|
|
hidden_states = self.group_norm(hidden_states) |
|
|
|
hidden_states = hidden_states.view(batch, channel, height * width).transpose(1, 2) |
|
|
|
|
|
query_proj = self.to_q(hidden_states) |
|
key_proj = self.to_k(hidden_states) |
|
value_proj = self.to_v(hidden_states) |
|
|
|
query_proj, key_proj, value_proj = map( |
|
lambda t: rearrange(t, "b n (h d) -> b h n d", h=self.heads), (query_proj, key_proj, value_proj) |
|
) |
|
|
|
out = flash_func.apply(query_proj, key_proj, value_proj, None, False, q_bucket_size, k_bucket_size) |
|
|
|
out = rearrange(out, "b h n d -> b n (h d)") |
|
|
|
|
|
|
|
hidden_states = self.to_out[0](hidden_states) |
|
|
|
hidden_states = self.to_out[1](hidden_states) |
|
|
|
hidden_states = hidden_states.transpose(-1, -2).reshape(batch, channel, height, width) |
|
|
|
|
|
hidden_states = (hidden_states + residual) / self.rescale_output_factor |
|
return hidden_states |
|
|
|
def forward_flash_attn_0_14(self, hidden_states, **kwargs): |
|
if not hasattr(self, "to_q"): |
|
self.to_q = self.query |
|
self.to_k = self.key |
|
self.to_v = self.value |
|
self.to_out = [self.proj_attn, torch.nn.Identity()] |
|
self.heads = self.num_heads |
|
return forward_flash_attn(self, hidden_states, **kwargs) |
|
|
|
if diffusers.__version__ < "0.15.0": |
|
diffusers.models.attention.AttentionBlock.forward = forward_flash_attn_0_14 |
|
else: |
|
diffusers.models.attention_processor.Attention.forward = forward_flash_attn |
|
|
|
|
|
def replace_vae_attn_to_xformers(): |
|
logger.info("VAE: Attention.forward has been replaced to xformers") |
|
import xformers.ops |
|
|
|
def forward_xformers(self, hidden_states, **kwargs): |
|
residual = hidden_states |
|
batch, channel, height, width = hidden_states.shape |
|
|
|
|
|
hidden_states = self.group_norm(hidden_states) |
|
|
|
hidden_states = hidden_states.view(batch, channel, height * width).transpose(1, 2) |
|
|
|
|
|
query_proj = self.to_q(hidden_states) |
|
key_proj = self.to_k(hidden_states) |
|
value_proj = self.to_v(hidden_states) |
|
|
|
query_proj, key_proj, value_proj = map( |
|
lambda t: rearrange(t, "b n (h d) -> b h n d", h=self.heads), (query_proj, key_proj, value_proj) |
|
) |
|
|
|
query_proj = query_proj.contiguous() |
|
key_proj = key_proj.contiguous() |
|
value_proj = value_proj.contiguous() |
|
out = xformers.ops.memory_efficient_attention(query_proj, key_proj, value_proj, attn_bias=None) |
|
|
|
out = rearrange(out, "b h n d -> b n (h d)") |
|
|
|
|
|
|
|
hidden_states = self.to_out[0](hidden_states) |
|
|
|
hidden_states = self.to_out[1](hidden_states) |
|
|
|
hidden_states = hidden_states.transpose(-1, -2).reshape(batch, channel, height, width) |
|
|
|
|
|
hidden_states = (hidden_states + residual) / self.rescale_output_factor |
|
return hidden_states |
|
|
|
def forward_xformers_0_14(self, hidden_states, **kwargs): |
|
if not hasattr(self, "to_q"): |
|
self.to_q = self.query |
|
self.to_k = self.key |
|
self.to_v = self.value |
|
self.to_out = [self.proj_attn, torch.nn.Identity()] |
|
self.heads = self.num_heads |
|
return forward_xformers(self, hidden_states, **kwargs) |
|
|
|
if diffusers.__version__ < "0.15.0": |
|
diffusers.models.attention.AttentionBlock.forward = forward_xformers_0_14 |
|
else: |
|
diffusers.models.attention_processor.Attention.forward = forward_xformers |
|
|
|
|
|
def replace_vae_attn_to_sdpa(): |
|
logger.info("VAE: Attention.forward has been replaced to sdpa") |
|
|
|
def forward_sdpa(self, hidden_states, **kwargs): |
|
residual = hidden_states |
|
batch, channel, height, width = hidden_states.shape |
|
|
|
|
|
hidden_states = self.group_norm(hidden_states) |
|
|
|
hidden_states = hidden_states.view(batch, channel, height * width).transpose(1, 2) |
|
|
|
|
|
query_proj = self.to_q(hidden_states) |
|
key_proj = self.to_k(hidden_states) |
|
value_proj = self.to_v(hidden_states) |
|
|
|
query_proj, key_proj, value_proj = map( |
|
lambda t: rearrange(t, "b n (h d) -> b n h d", h=self.heads), (query_proj, key_proj, value_proj) |
|
) |
|
|
|
out = torch.nn.functional.scaled_dot_product_attention( |
|
query_proj, key_proj, value_proj, attn_mask=None, dropout_p=0.0, is_causal=False |
|
) |
|
|
|
out = rearrange(out, "b n h d -> b n (h d)") |
|
|
|
|
|
|
|
hidden_states = self.to_out[0](hidden_states) |
|
|
|
hidden_states = self.to_out[1](hidden_states) |
|
|
|
hidden_states = hidden_states.transpose(-1, -2).reshape(batch, channel, height, width) |
|
|
|
|
|
hidden_states = (hidden_states + residual) / self.rescale_output_factor |
|
return hidden_states |
|
|
|
def forward_sdpa_0_14(self, hidden_states, **kwargs): |
|
if not hasattr(self, "to_q"): |
|
self.to_q = self.query |
|
self.to_k = self.key |
|
self.to_v = self.value |
|
self.to_out = [self.proj_attn, torch.nn.Identity()] |
|
self.heads = self.num_heads |
|
return forward_sdpa(self, hidden_states, **kwargs) |
|
|
|
if diffusers.__version__ < "0.15.0": |
|
diffusers.models.attention.AttentionBlock.forward = forward_sdpa_0_14 |
|
else: |
|
diffusers.models.attention_processor.Attention.forward = forward_sdpa |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class PipelineLike: |
|
r""" |
|
Pipeline for text-to-image generation using Stable Diffusion without tokens length limit, and support parsing |
|
weighting in prompt. |
|
This model inherits from [`DiffusionPipeline`]. Check the superclass documentation for the generic methods the |
|
library implements for all the pipelines (such as downloading or saving, running on a particular device, etc.) |
|
Args: |
|
vae ([`AutoencoderKL`]): |
|
Variational Auto-Encoder (VAE) Model to encode and decode images to and from latent representations. |
|
text_encoder ([`CLIPTextModel`]): |
|
Frozen text-encoder. Stable Diffusion uses the text portion of |
|
[CLIP](https://huggingface.co/docs/transformers/model_doc/clip#transformers.CLIPTextModel), specifically |
|
the [clip-vit-large-patch14](https://huggingface.co/openai/clip-vit-large-patch14) variant. |
|
tokenizer (`CLIPTokenizer`): |
|
Tokenizer of class |
|
[CLIPTokenizer](https://huggingface.co/docs/transformers/v4.21.0/en/model_doc/clip#transformers.CLIPTokenizer). |
|
unet ([`UNet2DConditionModel`]): Conditional U-Net architecture to denoise the encoded image latents. |
|
scheduler ([`SchedulerMixin`]): |
|
A scheduler to be used in combination with `unet` to denoise the encoded image latents. Can be one of |
|
[`DDIMScheduler`], [`LMSDiscreteScheduler`], or [`PNDMScheduler`]. |
|
safety_checker ([`StableDiffusionSafetyChecker`]): |
|
Classification module that estimates whether generated images could be considered offensive or harmful. |
|
Please, refer to the [model card](https://huggingface.co/CompVis/stable-diffusion-v1-4) for details. |
|
feature_extractor ([`CLIPFeatureExtractor`]): |
|
Model that extracts features from generated images to be used as inputs for the `safety_checker`. |
|
""" |
|
|
|
def __init__( |
|
self, |
|
device, |
|
vae: AutoencoderKL, |
|
text_encoder: CLIPTextModel, |
|
tokenizer: CLIPTokenizer, |
|
unet: InferUNet2DConditionModel, |
|
scheduler: Union[DDIMScheduler, PNDMScheduler, LMSDiscreteScheduler], |
|
clip_skip: int, |
|
clip_model: CLIPModel, |
|
clip_guidance_scale: float, |
|
clip_image_guidance_scale: float, |
|
vgg16_model: torchvision.models.VGG, |
|
vgg16_guidance_scale: float, |
|
vgg16_layer_no: int, |
|
|
|
|
|
): |
|
super().__init__() |
|
self.device = device |
|
self.clip_skip = clip_skip |
|
|
|
if hasattr(scheduler.config, "steps_offset") and scheduler.config.steps_offset != 1: |
|
deprecation_message = ( |
|
f"The configuration file of this scheduler: {scheduler} is outdated. `steps_offset`" |
|
f" should be set to 1 instead of {scheduler.config.steps_offset}. Please make sure " |
|
"to update the config accordingly as leaving `steps_offset` might led to incorrect results" |
|
" in future versions. If you have downloaded this checkpoint from the Hugging Face Hub," |
|
" it would be very nice if you could open a Pull request for the `scheduler/scheduler_config.json`" |
|
" file" |
|
) |
|
deprecate("steps_offset!=1", "1.0.0", deprecation_message, standard_warn=False) |
|
new_config = dict(scheduler.config) |
|
new_config["steps_offset"] = 1 |
|
scheduler._internal_dict = FrozenDict(new_config) |
|
|
|
if hasattr(scheduler.config, "clip_sample") and scheduler.config.clip_sample is True: |
|
deprecation_message = ( |
|
f"The configuration file of this scheduler: {scheduler} has not set the configuration `clip_sample`." |
|
" `clip_sample` should be set to False in the configuration file. Please make sure to update the" |
|
" config accordingly as not setting `clip_sample` in the config might lead to incorrect results in" |
|
" future versions. If you have downloaded this checkpoint from the Hugging Face Hub, it would be very" |
|
" nice if you could open a Pull request for the `scheduler/scheduler_config.json` file" |
|
) |
|
deprecate("clip_sample not set", "1.0.0", deprecation_message, standard_warn=False) |
|
new_config = dict(scheduler.config) |
|
new_config["clip_sample"] = False |
|
scheduler._internal_dict = FrozenDict(new_config) |
|
|
|
self.vae = vae |
|
self.text_encoder = text_encoder |
|
self.tokenizer = tokenizer |
|
self.unet = unet |
|
self.scheduler = scheduler |
|
self.safety_checker = None |
|
|
|
|
|
self.token_replacements = {} |
|
|
|
|
|
self.token_replacements_XTI = {} |
|
|
|
|
|
self.clip_guidance_scale = clip_guidance_scale |
|
self.clip_image_guidance_scale = clip_image_guidance_scale |
|
self.clip_model = clip_model |
|
self.normalize = transforms.Normalize(mean=FEATURE_EXTRACTOR_IMAGE_MEAN, std=FEATURE_EXTRACTOR_IMAGE_STD) |
|
self.make_cutouts = MakeCutouts(FEATURE_EXTRACTOR_SIZE) |
|
|
|
|
|
self.vgg16_guidance_scale = vgg16_guidance_scale |
|
if self.vgg16_guidance_scale > 0.0: |
|
return_layers = {f"{vgg16_layer_no}": "feat"} |
|
self.vgg16_feat_model = torchvision.models._utils.IntermediateLayerGetter( |
|
vgg16_model.features, return_layers=return_layers |
|
) |
|
self.vgg16_normalize = transforms.Normalize(mean=VGG16_IMAGE_MEAN, std=VGG16_IMAGE_STD) |
|
|
|
|
|
self.control_nets: List[ControlNetInfo] = [] |
|
self.control_net_enabled = True |
|
|
|
self.gradual_latent: GradualLatent = None |
|
|
|
|
|
def add_token_replacement(self, target_token_id, rep_token_ids): |
|
self.token_replacements[target_token_id] = rep_token_ids |
|
|
|
def set_enable_control_net(self, en: bool): |
|
self.control_net_enabled = en |
|
|
|
def replace_token(self, tokens, layer=None): |
|
new_tokens = [] |
|
for token in tokens: |
|
if token in self.token_replacements: |
|
replacer_ = self.token_replacements[token] |
|
if layer: |
|
replacer = [] |
|
for r in replacer_: |
|
if r in self.token_replacements_XTI: |
|
replacer.append(self.token_replacements_XTI[r][layer]) |
|
else: |
|
replacer = replacer_ |
|
new_tokens.extend(replacer) |
|
else: |
|
new_tokens.append(token) |
|
return new_tokens |
|
|
|
def add_token_replacement_XTI(self, target_token_id, rep_token_ids): |
|
self.token_replacements_XTI[target_token_id] = rep_token_ids |
|
|
|
def set_control_nets(self, ctrl_nets): |
|
self.control_nets = ctrl_nets |
|
|
|
def set_gradual_latent(self, gradual_latent): |
|
if gradual_latent is None: |
|
logger.info("gradual_latent is disabled") |
|
self.gradual_latent = None |
|
else: |
|
logger.info(f"gradual_latent is enabled: {gradual_latent}") |
|
self.gradual_latent = gradual_latent |
|
|
|
|
|
|
|
def enable_xformers_memory_efficient_attention(self): |
|
r""" |
|
Enable memory efficient attention as implemented in xformers. |
|
When this option is enabled, you should observe lower GPU memory usage and a potential speed up at inference |
|
time. Speed up at training time is not guaranteed. |
|
Warning: When Memory Efficient Attention and Sliced attention are both enabled, the Memory Efficient Attention |
|
is used. |
|
""" |
|
self.unet.set_use_memory_efficient_attention_xformers(True) |
|
|
|
def disable_xformers_memory_efficient_attention(self): |
|
r""" |
|
Disable memory efficient attention as implemented in xformers. |
|
""" |
|
self.unet.set_use_memory_efficient_attention_xformers(False) |
|
|
|
def enable_attention_slicing(self, slice_size: Optional[Union[str, int]] = "auto"): |
|
r""" |
|
Enable sliced attention computation. |
|
When this option is enabled, the attention module will split the input tensor in slices, to compute attention |
|
in several steps. This is useful to save some memory in exchange for a small speed decrease. |
|
Args: |
|
slice_size (`str` or `int`, *optional*, defaults to `"auto"`): |
|
When `"auto"`, halves the input to the attention heads, so attention will be computed in two steps. If |
|
a number is provided, uses as many slices as `attention_head_dim // slice_size`. In this case, |
|
`attention_head_dim` must be a multiple of `slice_size`. |
|
""" |
|
if slice_size == "auto": |
|
|
|
|
|
slice_size = self.unet.config.attention_head_dim // 2 |
|
self.unet.set_attention_slice(slice_size) |
|
|
|
def disable_attention_slicing(self): |
|
r""" |
|
Disable sliced attention computation. If `enable_attention_slicing` was previously invoked, this method will go |
|
back to computing attention in one step. |
|
""" |
|
|
|
self.enable_attention_slicing(None) |
|
|
|
def enable_sequential_cpu_offload(self): |
|
r""" |
|
Offloads all models to CPU using accelerate, significantly reducing memory usage. When called, unet, |
|
text_encoder, vae and safety checker have their state dicts saved to CPU and then are moved to a |
|
`torch.device('meta') and loaded to GPU only when their specific submodule has its `forward` method called. |
|
""" |
|
|
|
raise NotImplementedError("cpu_offload is omitted.") |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
@torch.no_grad() |
|
def __call__( |
|
self, |
|
prompt: Union[str, List[str]], |
|
negative_prompt: Optional[Union[str, List[str]]] = None, |
|
init_image: Union[torch.FloatTensor, PIL.Image.Image, List[PIL.Image.Image]] = None, |
|
mask_image: Union[torch.FloatTensor, PIL.Image.Image, List[PIL.Image.Image]] = None, |
|
height: int = 512, |
|
width: int = 512, |
|
num_inference_steps: int = 50, |
|
guidance_scale: float = 7.5, |
|
negative_scale: float = None, |
|
strength: float = 0.8, |
|
|
|
eta: float = 0.0, |
|
generator: Optional[torch.Generator] = None, |
|
latents: Optional[torch.FloatTensor] = None, |
|
max_embeddings_multiples: Optional[int] = 3, |
|
output_type: Optional[str] = "pil", |
|
vae_batch_size: float = None, |
|
return_latents: bool = False, |
|
|
|
callback: Optional[Callable[[int, int, torch.FloatTensor], None]] = None, |
|
is_cancelled_callback: Optional[Callable[[], bool]] = None, |
|
callback_steps: Optional[int] = 1, |
|
img2img_noise=None, |
|
clip_prompts=None, |
|
clip_guide_images=None, |
|
networks: Optional[List[LoRANetwork]] = None, |
|
**kwargs, |
|
): |
|
r""" |
|
Function invoked when calling the pipeline for generation. |
|
Args: |
|
prompt (`str` or `List[str]`): |
|
The prompt or prompts to guide the image generation. |
|
negative_prompt (`str` or `List[str]`, *optional*): |
|
The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored |
|
if `guidance_scale` is less than `1`). |
|
init_image (`torch.FloatTensor` or `PIL.Image.Image`): |
|
`Image`, or tensor representing an image batch, that will be used as the starting point for the |
|
process. |
|
mask_image (`torch.FloatTensor` or `PIL.Image.Image`): |
|
`Image`, or tensor representing an image batch, to mask `init_image`. White pixels in the mask will be |
|
replaced by noise and therefore repainted, while black pixels will be preserved. If `mask_image` is a |
|
PIL image, it will be converted to a single channel (luminance) before use. If it's a tensor, it should |
|
contain one color channel (L) instead of 3, so the expected shape would be `(B, H, W, 1)`. |
|
height (`int`, *optional*, defaults to 512): |
|
The height in pixels of the generated image. |
|
width (`int`, *optional*, defaults to 512): |
|
The width in pixels of the generated image. |
|
num_inference_steps (`int`, *optional*, defaults to 50): |
|
The number of denoising steps. More denoising steps usually lead to a higher quality image at the |
|
expense of slower inference. |
|
guidance_scale (`float`, *optional*, defaults to 7.5): |
|
Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://arxiv.org/abs/2207.12598). |
|
`guidance_scale` is defined as `w` of equation 2. of [Imagen |
|
Paper](https://arxiv.org/pdf/2205.11487.pdf). Guidance scale is enabled by setting `guidance_scale > |
|
1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, |
|
usually at the expense of lower image quality. |
|
strength (`float`, *optional*, defaults to 0.8): |
|
Conceptually, indicates how much to transform the reference `init_image`. Must be between 0 and 1. |
|
`init_image` will be used as a starting point, adding more noise to it the larger the `strength`. The |
|
number of denoising steps depends on the amount of noise initially added. When `strength` is 1, added |
|
noise will be maximum and the denoising process will run for the full number of iterations specified in |
|
`num_inference_steps`. A value of 1, therefore, essentially ignores `init_image`. |
|
num_images_per_prompt (`int`, *optional*, defaults to 1): |
|
The number of images to generate per prompt. |
|
eta (`float`, *optional*, defaults to 0.0): |
|
Corresponds to parameter eta (η) in the DDIM paper: https://arxiv.org/abs/2010.02502. Only applies to |
|
[`schedulers.DDIMScheduler`], will be ignored for others. |
|
generator (`torch.Generator`, *optional*): |
|
A [torch generator](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation |
|
deterministic. |
|
latents (`torch.FloatTensor`, *optional*): |
|
Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image |
|
generation. Can be used to tweak the same generation with different prompts. If not provided, a latents |
|
tensor will ge generated by sampling using the supplied random `generator`. |
|
max_embeddings_multiples (`int`, *optional*, defaults to `3`): |
|
The max multiple length of prompt embeddings compared to the max output length of text encoder. |
|
output_type (`str`, *optional*, defaults to `"pil"`): |
|
The output format of the generate image. Choose between |
|
[PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. |
|
return_dict (`bool`, *optional*, defaults to `True`): |
|
Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a |
|
plain tuple. |
|
callback (`Callable`, *optional*): |
|
A function that will be called every `callback_steps` steps during inference. The function will be |
|
called with the following arguments: `callback(step: int, timestep: int, latents: torch.FloatTensor)`. |
|
is_cancelled_callback (`Callable`, *optional*): |
|
A function that will be called every `callback_steps` steps during inference. If the function returns |
|
`True`, the inference will be cancelled. |
|
callback_steps (`int`, *optional*, defaults to 1): |
|
The frequency at which the `callback` function will be called. If not specified, the callback will be |
|
called at every step. |
|
Returns: |
|
`None` if cancelled by `is_cancelled_callback`, |
|
[`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: |
|
[`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] if `return_dict` is True, otherwise a `tuple. |
|
When returning a tuple, the first element is a list with the generated images, and the second element is a |
|
list of `bool`s denoting whether the corresponding generated image likely represents "not-safe-for-work" |
|
(nsfw) content, according to the `safety_checker`. |
|
""" |
|
num_images_per_prompt = 1 |
|
|
|
if isinstance(prompt, str): |
|
batch_size = 1 |
|
prompt = [prompt] |
|
elif isinstance(prompt, list): |
|
batch_size = len(prompt) |
|
else: |
|
raise ValueError(f"`prompt` has to be of type `str` or `list` but is {type(prompt)}") |
|
reginonal_network = " AND " in prompt[0] |
|
|
|
vae_batch_size = ( |
|
batch_size |
|
if vae_batch_size is None |
|
else (int(vae_batch_size) if vae_batch_size >= 1 else max(1, int(batch_size * vae_batch_size))) |
|
) |
|
|
|
if strength < 0 or strength > 1: |
|
raise ValueError(f"The value of strength should in [0.0, 1.0] but is {strength}") |
|
|
|
if height % 8 != 0 or width % 8 != 0: |
|
raise ValueError(f"`height` and `width` have to be divisible by 8 but are {height} and {width}.") |
|
|
|
if (callback_steps is None) or ( |
|
callback_steps is not None and (not isinstance(callback_steps, int) or callback_steps <= 0) |
|
): |
|
raise ValueError( |
|
f"`callback_steps` has to be a positive integer but is {callback_steps} of type" f" {type(callback_steps)}." |
|
) |
|
|
|
|
|
|
|
|
|
|
|
|
|
do_classifier_free_guidance = guidance_scale > 1.0 |
|
|
|
if not do_classifier_free_guidance and negative_scale is not None: |
|
logger.warning(f"negative_scale is ignored if guidance scalle <= 1.0") |
|
negative_scale = None |
|
|
|
|
|
if negative_prompt is None: |
|
negative_prompt = [""] * batch_size |
|
elif isinstance(negative_prompt, str): |
|
negative_prompt = [negative_prompt] * batch_size |
|
if batch_size != len(negative_prompt): |
|
raise ValueError( |
|
f"`negative_prompt`: {negative_prompt} has batch size {len(negative_prompt)}, but `prompt`:" |
|
f" {prompt} has batch size {batch_size}. Please make sure that passed `negative_prompt` matches" |
|
" the batch size of `prompt`." |
|
) |
|
|
|
if not self.token_replacements_XTI: |
|
text_embeddings, uncond_embeddings, prompt_tokens = get_weighted_text_embeddings( |
|
pipe=self, |
|
prompt=prompt, |
|
uncond_prompt=negative_prompt if do_classifier_free_guidance else None, |
|
max_embeddings_multiples=max_embeddings_multiples, |
|
clip_skip=self.clip_skip, |
|
**kwargs, |
|
) |
|
|
|
if negative_scale is not None: |
|
_, real_uncond_embeddings, _ = get_weighted_text_embeddings( |
|
pipe=self, |
|
prompt=prompt, |
|
uncond_prompt=[""] * batch_size, |
|
max_embeddings_multiples=max_embeddings_multiples, |
|
clip_skip=self.clip_skip, |
|
**kwargs, |
|
) |
|
|
|
if self.token_replacements_XTI: |
|
text_embeddings_concat = [] |
|
for layer in [ |
|
"IN01", |
|
"IN02", |
|
"IN04", |
|
"IN05", |
|
"IN07", |
|
"IN08", |
|
"MID", |
|
"OUT03", |
|
"OUT04", |
|
"OUT05", |
|
"OUT06", |
|
"OUT07", |
|
"OUT08", |
|
"OUT09", |
|
"OUT10", |
|
"OUT11", |
|
]: |
|
text_embeddings, uncond_embeddings, prompt_tokens = get_weighted_text_embeddings( |
|
pipe=self, |
|
prompt=prompt, |
|
uncond_prompt=negative_prompt if do_classifier_free_guidance else None, |
|
max_embeddings_multiples=max_embeddings_multiples, |
|
clip_skip=self.clip_skip, |
|
layer=layer, |
|
**kwargs, |
|
) |
|
if do_classifier_free_guidance: |
|
if negative_scale is None: |
|
text_embeddings_concat.append(torch.cat([uncond_embeddings, text_embeddings])) |
|
else: |
|
text_embeddings_concat.append(torch.cat([uncond_embeddings, text_embeddings, real_uncond_embeddings])) |
|
text_embeddings = torch.stack(text_embeddings_concat) |
|
else: |
|
if do_classifier_free_guidance: |
|
if negative_scale is None: |
|
text_embeddings = torch.cat([uncond_embeddings, text_embeddings]) |
|
else: |
|
text_embeddings = torch.cat([uncond_embeddings, text_embeddings, real_uncond_embeddings]) |
|
|
|
|
|
if self.clip_guidance_scale > 0: |
|
clip_text_input = prompt_tokens |
|
if clip_text_input.shape[1] > self.tokenizer.model_max_length: |
|
|
|
logger.info(f"trim text input {clip_text_input.shape}") |
|
clip_text_input = torch.cat( |
|
[clip_text_input[:, : self.tokenizer.model_max_length - 1], clip_text_input[:, -1].unsqueeze(1)], dim=1 |
|
) |
|
logger.info(f"trimmed {clip_text_input.shape}") |
|
|
|
for i, clip_prompt in enumerate(clip_prompts): |
|
if clip_prompt is not None: |
|
clip_text_input[i] = self.tokenizer( |
|
clip_prompt, |
|
padding="max_length", |
|
max_length=self.tokenizer.model_max_length, |
|
truncation=True, |
|
return_tensors="pt", |
|
).input_ids.to(self.device) |
|
|
|
text_embeddings_clip = self.clip_model.get_text_features(clip_text_input) |
|
text_embeddings_clip = text_embeddings_clip / text_embeddings_clip.norm(p=2, dim=-1, keepdim=True) |
|
|
|
if ( |
|
self.clip_image_guidance_scale > 0 |
|
or self.vgg16_guidance_scale > 0 |
|
and clip_guide_images is not None |
|
or self.control_nets |
|
): |
|
if isinstance(clip_guide_images, PIL.Image.Image): |
|
clip_guide_images = [clip_guide_images] |
|
|
|
if self.clip_image_guidance_scale > 0: |
|
clip_guide_images = [preprocess_guide_image(im) for im in clip_guide_images] |
|
clip_guide_images = torch.cat(clip_guide_images, dim=0) |
|
|
|
clip_guide_images = self.normalize(clip_guide_images).to(self.device).to(text_embeddings.dtype) |
|
image_embeddings_clip = self.clip_model.get_image_features(clip_guide_images) |
|
image_embeddings_clip = image_embeddings_clip / image_embeddings_clip.norm(p=2, dim=-1, keepdim=True) |
|
if len(image_embeddings_clip) == 1: |
|
image_embeddings_clip = image_embeddings_clip.repeat((batch_size, 1, 1, 1)) |
|
elif self.vgg16_guidance_scale > 0: |
|
size = (width // VGG16_INPUT_RESIZE_DIV, height // VGG16_INPUT_RESIZE_DIV) |
|
clip_guide_images = [preprocess_vgg16_guide_image(im, size) for im in clip_guide_images] |
|
clip_guide_images = torch.cat(clip_guide_images, dim=0) |
|
|
|
clip_guide_images = self.vgg16_normalize(clip_guide_images).to(self.device).to(text_embeddings.dtype) |
|
image_embeddings_vgg16 = self.vgg16_feat_model(clip_guide_images)["feat"] |
|
if len(image_embeddings_vgg16) == 1: |
|
image_embeddings_vgg16 = image_embeddings_vgg16.repeat((batch_size, 1, 1, 1)) |
|
else: |
|
|
|
|
|
pass |
|
|
|
|
|
self.scheduler.set_timesteps(num_inference_steps, self.device) |
|
|
|
latents_dtype = text_embeddings.dtype |
|
init_latents_orig = None |
|
mask = None |
|
|
|
if init_image is None: |
|
|
|
|
|
|
|
|
|
|
|
latents_shape = ( |
|
batch_size * num_images_per_prompt, |
|
self.unet.in_channels, |
|
height // 8, |
|
width // 8, |
|
) |
|
|
|
if latents is None: |
|
if self.device.type == "mps": |
|
|
|
latents = torch.randn( |
|
latents_shape, |
|
generator=generator, |
|
device="cpu", |
|
dtype=latents_dtype, |
|
).to(self.device) |
|
else: |
|
latents = torch.randn( |
|
latents_shape, |
|
generator=generator, |
|
device=self.device, |
|
dtype=latents_dtype, |
|
) |
|
else: |
|
if latents.shape != latents_shape: |
|
raise ValueError(f"Unexpected latents shape, got {latents.shape}, expected {latents_shape}") |
|
latents = latents.to(self.device) |
|
|
|
timesteps = self.scheduler.timesteps.to(self.device) |
|
|
|
|
|
latents = latents * self.scheduler.init_noise_sigma |
|
else: |
|
|
|
if isinstance(init_image, PIL.Image.Image): |
|
init_image = [init_image] |
|
if isinstance(init_image[0], PIL.Image.Image): |
|
init_image = [preprocess_image(im) for im in init_image] |
|
init_image = torch.cat(init_image) |
|
if isinstance(init_image, list): |
|
init_image = torch.stack(init_image) |
|
|
|
|
|
if mask_image is not None: |
|
if isinstance(mask_image, PIL.Image.Image): |
|
mask_image = [mask_image] |
|
if isinstance(mask_image[0], PIL.Image.Image): |
|
mask_image = torch.cat([preprocess_mask(im) for im in mask_image]) |
|
|
|
|
|
init_image = init_image.to(device=self.device, dtype=latents_dtype) |
|
if init_image.size()[-2:] == (height // 8, width // 8): |
|
init_latents = init_image |
|
else: |
|
if vae_batch_size >= batch_size: |
|
init_latent_dist = self.vae.encode(init_image).latent_dist |
|
init_latents = init_latent_dist.sample(generator=generator) |
|
else: |
|
clean_memory() |
|
init_latents = [] |
|
for i in tqdm(range(0, min(batch_size, len(init_image)), vae_batch_size)): |
|
init_latent_dist = self.vae.encode( |
|
init_image[i : i + vae_batch_size] if vae_batch_size > 1 else init_image[i].unsqueeze(0) |
|
).latent_dist |
|
init_latents.append(init_latent_dist.sample(generator=generator)) |
|
init_latents = torch.cat(init_latents) |
|
|
|
init_latents = 0.18215 * init_latents |
|
|
|
if len(init_latents) == 1: |
|
init_latents = init_latents.repeat((batch_size, 1, 1, 1)) |
|
init_latents_orig = init_latents |
|
|
|
|
|
if mask_image is not None: |
|
mask = mask_image.to(device=self.device, dtype=latents_dtype) |
|
if len(mask) == 1: |
|
mask = mask.repeat((batch_size, 1, 1, 1)) |
|
|
|
|
|
if not mask.shape == init_latents.shape: |
|
raise ValueError("The mask and init_image should be the same size!") |
|
|
|
|
|
offset = self.scheduler.config.get("steps_offset", 0) |
|
init_timestep = int(num_inference_steps * strength) + offset |
|
init_timestep = min(init_timestep, num_inference_steps) |
|
|
|
timesteps = self.scheduler.timesteps[-init_timestep] |
|
timesteps = torch.tensor([timesteps] * batch_size * num_images_per_prompt, device=self.device) |
|
|
|
|
|
latents = self.scheduler.add_noise(init_latents, img2img_noise, timesteps) |
|
|
|
t_start = max(num_inference_steps - init_timestep + offset, 0) |
|
timesteps = self.scheduler.timesteps[t_start:].to(self.device) |
|
|
|
|
|
|
|
|
|
|
|
accepts_eta = "eta" in set(inspect.signature(self.scheduler.step).parameters.keys()) |
|
extra_step_kwargs = {} |
|
if accepts_eta: |
|
extra_step_kwargs["eta"] = eta |
|
|
|
num_latent_input = (3 if negative_scale is not None else 2) if do_classifier_free_guidance else 1 |
|
|
|
if self.control_nets: |
|
guided_hints = original_control_net.get_guided_hints(self.control_nets, num_latent_input, batch_size, clip_guide_images) |
|
|
|
if reginonal_network: |
|
num_sub_and_neg_prompts = len(text_embeddings) // batch_size |
|
|
|
text_emb_last = [] |
|
for j in range(batch_size): |
|
text_emb_last.append(text_embeddings[(j + 1) * num_sub_and_neg_prompts - 2]) |
|
text_emb_last.append(text_embeddings[(j + 1) * num_sub_and_neg_prompts - 1]) |
|
text_emb_last = torch.stack(text_emb_last) |
|
else: |
|
text_emb_last = text_embeddings |
|
|
|
enable_gradual_latent = False |
|
if self.gradual_latent: |
|
if not hasattr(self.scheduler, "set_gradual_latent_params"): |
|
logger.info("gradual_latent is not supported for this scheduler. Ignoring.") |
|
logger.info(f'{self.scheduler.__class__.__name__}') |
|
else: |
|
enable_gradual_latent = True |
|
step_elapsed = 1000 |
|
current_ratio = self.gradual_latent.ratio |
|
|
|
|
|
height, width = latents.shape[-2:] |
|
org_dtype = latents.dtype |
|
if org_dtype == torch.bfloat16: |
|
latents = latents.float() |
|
latents = torch.nn.functional.interpolate( |
|
latents, scale_factor=current_ratio, mode="bicubic", align_corners=False |
|
).to(org_dtype) |
|
|
|
|
|
if self.gradual_latent.gaussian_blur_ksize: |
|
latents = self.gradual_latent.apply_unshark_mask(latents) |
|
|
|
for i, t in enumerate(tqdm(timesteps)): |
|
resized_size = None |
|
if enable_gradual_latent: |
|
|
|
if ( |
|
t < self.gradual_latent.start_timesteps |
|
and current_ratio < 1.0 |
|
and step_elapsed >= self.gradual_latent.every_n_steps |
|
): |
|
current_ratio = min(current_ratio + self.gradual_latent.ratio_step, 1.0) |
|
|
|
h = int(height * current_ratio) // 8 * 8 |
|
w = int(width * current_ratio) // 8 * 8 |
|
resized_size = (h, w) |
|
self.scheduler.set_gradual_latent_params(resized_size, self.gradual_latent) |
|
step_elapsed = 0 |
|
else: |
|
self.scheduler.set_gradual_latent_params(None, None) |
|
step_elapsed += 1 |
|
|
|
|
|
latent_model_input = latents.repeat((num_latent_input, 1, 1, 1)) |
|
latent_model_input = self.scheduler.scale_model_input(latent_model_input, t) |
|
|
|
|
|
if self.control_nets and self.control_net_enabled: |
|
noise_pred = original_control_net.call_unet_and_control_net( |
|
i, |
|
num_latent_input, |
|
self.unet, |
|
self.control_nets, |
|
guided_hints, |
|
i / len(timesteps), |
|
latent_model_input, |
|
t, |
|
text_embeddings, |
|
text_emb_last, |
|
).sample |
|
else: |
|
noise_pred = self.unet(latent_model_input, t, encoder_hidden_states=text_embeddings).sample |
|
|
|
|
|
if do_classifier_free_guidance: |
|
if negative_scale is None: |
|
noise_pred_uncond, noise_pred_text = noise_pred.chunk(num_latent_input) |
|
noise_pred = noise_pred_uncond + guidance_scale * (noise_pred_text - noise_pred_uncond) |
|
else: |
|
noise_pred_negative, noise_pred_text, noise_pred_uncond = noise_pred.chunk( |
|
num_latent_input |
|
) |
|
noise_pred = ( |
|
noise_pred_uncond |
|
+ guidance_scale * (noise_pred_text - noise_pred_uncond) |
|
- negative_scale * (noise_pred_negative - noise_pred_uncond) |
|
) |
|
|
|
|
|
if self.clip_guidance_scale > 0 or self.clip_image_guidance_scale > 0 or self.vgg16_guidance_scale > 0: |
|
text_embeddings_for_guidance = ( |
|
text_embeddings.chunk(num_latent_input)[1] if do_classifier_free_guidance else text_embeddings |
|
) |
|
|
|
if self.clip_guidance_scale > 0: |
|
noise_pred, latents = self.cond_fn( |
|
latents, |
|
t, |
|
i, |
|
text_embeddings_for_guidance, |
|
noise_pred, |
|
text_embeddings_clip, |
|
self.clip_guidance_scale, |
|
NUM_CUTOUTS, |
|
USE_CUTOUTS, |
|
) |
|
if self.clip_image_guidance_scale > 0 and clip_guide_images is not None: |
|
noise_pred, latents = self.cond_fn( |
|
latents, |
|
t, |
|
i, |
|
text_embeddings_for_guidance, |
|
noise_pred, |
|
image_embeddings_clip, |
|
self.clip_image_guidance_scale, |
|
NUM_CUTOUTS, |
|
USE_CUTOUTS, |
|
) |
|
if self.vgg16_guidance_scale > 0 and clip_guide_images is not None: |
|
noise_pred, latents = self.cond_fn_vgg16( |
|
latents, t, i, text_embeddings_for_guidance, noise_pred, image_embeddings_vgg16, self.vgg16_guidance_scale |
|
) |
|
|
|
|
|
latents = self.scheduler.step(noise_pred, t, latents, **extra_step_kwargs).prev_sample |
|
|
|
if mask is not None: |
|
|
|
init_latents_proper = self.scheduler.add_noise(init_latents_orig, img2img_noise, torch.tensor([t])) |
|
latents = (init_latents_proper * mask) + (latents * (1 - mask)) |
|
|
|
|
|
if i % callback_steps == 0: |
|
if callback is not None: |
|
callback(i, t, latents) |
|
if is_cancelled_callback is not None and is_cancelled_callback(): |
|
return None |
|
|
|
if return_latents: |
|
return (latents, False) |
|
|
|
latents = 1 / 0.18215 * latents |
|
if vae_batch_size >= batch_size: |
|
image = self.vae.decode(latents).sample |
|
else: |
|
clean_memory() |
|
images = [] |
|
for i in tqdm(range(0, batch_size, vae_batch_size)): |
|
images.append( |
|
self.vae.decode(latents[i : i + vae_batch_size] if vae_batch_size > 1 else latents[i].unsqueeze(0)).sample |
|
) |
|
image = torch.cat(images) |
|
|
|
image = (image / 2 + 0.5).clamp(0, 1) |
|
|
|
|
|
image = image.cpu().permute(0, 2, 3, 1).float().numpy() |
|
|
|
if self.safety_checker is not None: |
|
safety_checker_input = self.feature_extractor(self.numpy_to_pil(image), return_tensors="pt").to(self.device) |
|
image, has_nsfw_concept = self.safety_checker( |
|
images=image, |
|
clip_input=safety_checker_input.pixel_values.to(text_embeddings.dtype), |
|
) |
|
else: |
|
has_nsfw_concept = None |
|
|
|
if output_type == "pil": |
|
|
|
image = (image * 255).round().astype("uint8") |
|
image = [Image.fromarray(im) for im in image] |
|
|
|
|
|
return (image, has_nsfw_concept) |
|
|
|
|
|
|
|
def text2img( |
|
self, |
|
prompt: Union[str, List[str]], |
|
negative_prompt: Optional[Union[str, List[str]]] = None, |
|
height: int = 512, |
|
width: int = 512, |
|
num_inference_steps: int = 50, |
|
guidance_scale: float = 7.5, |
|
num_images_per_prompt: Optional[int] = 1, |
|
eta: float = 0.0, |
|
generator: Optional[torch.Generator] = None, |
|
latents: Optional[torch.FloatTensor] = None, |
|
max_embeddings_multiples: Optional[int] = 3, |
|
output_type: Optional[str] = "pil", |
|
return_dict: bool = True, |
|
callback: Optional[Callable[[int, int, torch.FloatTensor], None]] = None, |
|
callback_steps: Optional[int] = 1, |
|
**kwargs, |
|
): |
|
r""" |
|
Function for text-to-image generation. |
|
Args: |
|
prompt (`str` or `List[str]`): |
|
The prompt or prompts to guide the image generation. |
|
negative_prompt (`str` or `List[str]`, *optional*): |
|
The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored |
|
if `guidance_scale` is less than `1`). |
|
height (`int`, *optional*, defaults to 512): |
|
The height in pixels of the generated image. |
|
width (`int`, *optional*, defaults to 512): |
|
The width in pixels of the generated image. |
|
num_inference_steps (`int`, *optional*, defaults to 50): |
|
The number of denoising steps. More denoising steps usually lead to a higher quality image at the |
|
expense of slower inference. |
|
guidance_scale (`float`, *optional*, defaults to 7.5): |
|
Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://arxiv.org/abs/2207.12598). |
|
`guidance_scale` is defined as `w` of equation 2. of [Imagen |
|
Paper](https://arxiv.org/pdf/2205.11487.pdf). Guidance scale is enabled by setting `guidance_scale > |
|
1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, |
|
usually at the expense of lower image quality. |
|
num_images_per_prompt (`int`, *optional*, defaults to 1): |
|
The number of images to generate per prompt. |
|
eta (`float`, *optional*, defaults to 0.0): |
|
Corresponds to parameter eta (η) in the DDIM paper: https://arxiv.org/abs/2010.02502. Only applies to |
|
[`schedulers.DDIMScheduler`], will be ignored for others. |
|
generator (`torch.Generator`, *optional*): |
|
A [torch generator](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation |
|
deterministic. |
|
latents (`torch.FloatTensor`, *optional*): |
|
Pre-generated noisy latents, sampled from a Gaussian distribution, to be used as inputs for image |
|
generation. Can be used to tweak the same generation with different prompts. If not provided, a latents |
|
tensor will ge generated by sampling using the supplied random `generator`. |
|
max_embeddings_multiples (`int`, *optional*, defaults to `3`): |
|
The max multiple length of prompt embeddings compared to the max output length of text encoder. |
|
output_type (`str`, *optional*, defaults to `"pil"`): |
|
The output format of the generate image. Choose between |
|
[PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. |
|
return_dict (`bool`, *optional*, defaults to `True`): |
|
Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a |
|
plain tuple. |
|
callback (`Callable`, *optional*): |
|
A function that will be called every `callback_steps` steps during inference. The function will be |
|
called with the following arguments: `callback(step: int, timestep: int, latents: torch.FloatTensor)`. |
|
callback_steps (`int`, *optional*, defaults to 1): |
|
The frequency at which the `callback` function will be called. If not specified, the callback will be |
|
called at every step. |
|
Returns: |
|
[`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: |
|
[`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] if `return_dict` is True, otherwise a `tuple. |
|
When returning a tuple, the first element is a list with the generated images, and the second element is a |
|
list of `bool`s denoting whether the corresponding generated image likely represents "not-safe-for-work" |
|
(nsfw) content, according to the `safety_checker`. |
|
""" |
|
return self.__call__( |
|
prompt=prompt, |
|
negative_prompt=negative_prompt, |
|
height=height, |
|
width=width, |
|
num_inference_steps=num_inference_steps, |
|
guidance_scale=guidance_scale, |
|
num_images_per_prompt=num_images_per_prompt, |
|
eta=eta, |
|
generator=generator, |
|
latents=latents, |
|
max_embeddings_multiples=max_embeddings_multiples, |
|
output_type=output_type, |
|
return_dict=return_dict, |
|
callback=callback, |
|
callback_steps=callback_steps, |
|
**kwargs, |
|
) |
|
|
|
def img2img( |
|
self, |
|
init_image: Union[torch.FloatTensor, PIL.Image.Image], |
|
prompt: Union[str, List[str]], |
|
negative_prompt: Optional[Union[str, List[str]]] = None, |
|
strength: float = 0.8, |
|
num_inference_steps: Optional[int] = 50, |
|
guidance_scale: Optional[float] = 7.5, |
|
num_images_per_prompt: Optional[int] = 1, |
|
eta: Optional[float] = 0.0, |
|
generator: Optional[torch.Generator] = None, |
|
max_embeddings_multiples: Optional[int] = 3, |
|
output_type: Optional[str] = "pil", |
|
return_dict: bool = True, |
|
callback: Optional[Callable[[int, int, torch.FloatTensor], None]] = None, |
|
callback_steps: Optional[int] = 1, |
|
**kwargs, |
|
): |
|
r""" |
|
Function for image-to-image generation. |
|
Args: |
|
init_image (`torch.FloatTensor` or `PIL.Image.Image`): |
|
`Image`, or tensor representing an image batch, that will be used as the starting point for the |
|
process. |
|
prompt (`str` or `List[str]`): |
|
The prompt or prompts to guide the image generation. |
|
negative_prompt (`str` or `List[str]`, *optional*): |
|
The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored |
|
if `guidance_scale` is less than `1`). |
|
strength (`float`, *optional*, defaults to 0.8): |
|
Conceptually, indicates how much to transform the reference `init_image`. Must be between 0 and 1. |
|
`init_image` will be used as a starting point, adding more noise to it the larger the `strength`. The |
|
number of denoising steps depends on the amount of noise initially added. When `strength` is 1, added |
|
noise will be maximum and the denoising process will run for the full number of iterations specified in |
|
`num_inference_steps`. A value of 1, therefore, essentially ignores `init_image`. |
|
num_inference_steps (`int`, *optional*, defaults to 50): |
|
The number of denoising steps. More denoising steps usually lead to a higher quality image at the |
|
expense of slower inference. This parameter will be modulated by `strength`. |
|
guidance_scale (`float`, *optional*, defaults to 7.5): |
|
Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://arxiv.org/abs/2207.12598). |
|
`guidance_scale` is defined as `w` of equation 2. of [Imagen |
|
Paper](https://arxiv.org/pdf/2205.11487.pdf). Guidance scale is enabled by setting `guidance_scale > |
|
1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, |
|
usually at the expense of lower image quality. |
|
num_images_per_prompt (`int`, *optional*, defaults to 1): |
|
The number of images to generate per prompt. |
|
eta (`float`, *optional*, defaults to 0.0): |
|
Corresponds to parameter eta (η) in the DDIM paper: https://arxiv.org/abs/2010.02502. Only applies to |
|
[`schedulers.DDIMScheduler`], will be ignored for others. |
|
generator (`torch.Generator`, *optional*): |
|
A [torch generator](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation |
|
deterministic. |
|
max_embeddings_multiples (`int`, *optional*, defaults to `3`): |
|
The max multiple length of prompt embeddings compared to the max output length of text encoder. |
|
output_type (`str`, *optional*, defaults to `"pil"`): |
|
The output format of the generate image. Choose between |
|
[PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. |
|
return_dict (`bool`, *optional*, defaults to `True`): |
|
Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a |
|
plain tuple. |
|
callback (`Callable`, *optional*): |
|
A function that will be called every `callback_steps` steps during inference. The function will be |
|
called with the following arguments: `callback(step: int, timestep: int, latents: torch.FloatTensor)`. |
|
callback_steps (`int`, *optional*, defaults to 1): |
|
The frequency at which the `callback` function will be called. If not specified, the callback will be |
|
called at every step. |
|
Returns: |
|
[`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: |
|
[`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] if `return_dict` is True, otherwise a `tuple. |
|
When returning a tuple, the first element is a list with the generated images, and the second element is a |
|
list of `bool`s denoting whether the corresponding generated image likely represents "not-safe-for-work" |
|
(nsfw) content, according to the `safety_checker`. |
|
""" |
|
return self.__call__( |
|
prompt=prompt, |
|
negative_prompt=negative_prompt, |
|
init_image=init_image, |
|
num_inference_steps=num_inference_steps, |
|
guidance_scale=guidance_scale, |
|
strength=strength, |
|
num_images_per_prompt=num_images_per_prompt, |
|
eta=eta, |
|
generator=generator, |
|
max_embeddings_multiples=max_embeddings_multiples, |
|
output_type=output_type, |
|
return_dict=return_dict, |
|
callback=callback, |
|
callback_steps=callback_steps, |
|
**kwargs, |
|
) |
|
|
|
def inpaint( |
|
self, |
|
init_image: Union[torch.FloatTensor, PIL.Image.Image], |
|
mask_image: Union[torch.FloatTensor, PIL.Image.Image], |
|
prompt: Union[str, List[str]], |
|
negative_prompt: Optional[Union[str, List[str]]] = None, |
|
strength: float = 0.8, |
|
num_inference_steps: Optional[int] = 50, |
|
guidance_scale: Optional[float] = 7.5, |
|
num_images_per_prompt: Optional[int] = 1, |
|
eta: Optional[float] = 0.0, |
|
generator: Optional[torch.Generator] = None, |
|
max_embeddings_multiples: Optional[int] = 3, |
|
output_type: Optional[str] = "pil", |
|
return_dict: bool = True, |
|
callback: Optional[Callable[[int, int, torch.FloatTensor], None]] = None, |
|
callback_steps: Optional[int] = 1, |
|
**kwargs, |
|
): |
|
r""" |
|
Function for inpaint. |
|
Args: |
|
init_image (`torch.FloatTensor` or `PIL.Image.Image`): |
|
`Image`, or tensor representing an image batch, that will be used as the starting point for the |
|
process. This is the image whose masked region will be inpainted. |
|
mask_image (`torch.FloatTensor` or `PIL.Image.Image`): |
|
`Image`, or tensor representing an image batch, to mask `init_image`. White pixels in the mask will be |
|
replaced by noise and therefore repainted, while black pixels will be preserved. If `mask_image` is a |
|
PIL image, it will be converted to a single channel (luminance) before use. If it's a tensor, it should |
|
contain one color channel (L) instead of 3, so the expected shape would be `(B, H, W, 1)`. |
|
prompt (`str` or `List[str]`): |
|
The prompt or prompts to guide the image generation. |
|
negative_prompt (`str` or `List[str]`, *optional*): |
|
The prompt or prompts not to guide the image generation. Ignored when not using guidance (i.e., ignored |
|
if `guidance_scale` is less than `1`). |
|
strength (`float`, *optional*, defaults to 0.8): |
|
Conceptually, indicates how much to inpaint the masked area. Must be between 0 and 1. When `strength` |
|
is 1, the denoising process will be run on the masked area for the full number of iterations specified |
|
in `num_inference_steps`. `init_image` will be used as a reference for the masked area, adding more |
|
noise to that region the larger the `strength`. If `strength` is 0, no inpainting will occur. |
|
num_inference_steps (`int`, *optional*, defaults to 50): |
|
The reference number of denoising steps. More denoising steps usually lead to a higher quality image at |
|
the expense of slower inference. This parameter will be modulated by `strength`, as explained above. |
|
guidance_scale (`float`, *optional*, defaults to 7.5): |
|
Guidance scale as defined in [Classifier-Free Diffusion Guidance](https://arxiv.org/abs/2207.12598). |
|
`guidance_scale` is defined as `w` of equation 2. of [Imagen |
|
Paper](https://arxiv.org/pdf/2205.11487.pdf). Guidance scale is enabled by setting `guidance_scale > |
|
1`. Higher guidance scale encourages to generate images that are closely linked to the text `prompt`, |
|
usually at the expense of lower image quality. |
|
num_images_per_prompt (`int`, *optional*, defaults to 1): |
|
The number of images to generate per prompt. |
|
eta (`float`, *optional*, defaults to 0.0): |
|
Corresponds to parameter eta (η) in the DDIM paper: https://arxiv.org/abs/2010.02502. Only applies to |
|
[`schedulers.DDIMScheduler`], will be ignored for others. |
|
generator (`torch.Generator`, *optional*): |
|
A [torch generator](https://pytorch.org/docs/stable/generated/torch.Generator.html) to make generation |
|
deterministic. |
|
max_embeddings_multiples (`int`, *optional*, defaults to `3`): |
|
The max multiple length of prompt embeddings compared to the max output length of text encoder. |
|
output_type (`str`, *optional*, defaults to `"pil"`): |
|
The output format of the generate image. Choose between |
|
[PIL](https://pillow.readthedocs.io/en/stable/): `PIL.Image.Image` or `np.array`. |
|
return_dict (`bool`, *optional*, defaults to `True`): |
|
Whether or not to return a [`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] instead of a |
|
plain tuple. |
|
callback (`Callable`, *optional*): |
|
A function that will be called every `callback_steps` steps during inference. The function will be |
|
called with the following arguments: `callback(step: int, timestep: int, latents: torch.FloatTensor)`. |
|
callback_steps (`int`, *optional*, defaults to 1): |
|
The frequency at which the `callback` function will be called. If not specified, the callback will be |
|
called at every step. |
|
Returns: |
|
[`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] or `tuple`: |
|
[`~pipelines.stable_diffusion.StableDiffusionPipelineOutput`] if `return_dict` is True, otherwise a `tuple. |
|
When returning a tuple, the first element is a list with the generated images, and the second element is a |
|
list of `bool`s denoting whether the corresponding generated image likely represents "not-safe-for-work" |
|
(nsfw) content, according to the `safety_checker`. |
|
""" |
|
return self.__call__( |
|
prompt=prompt, |
|
negative_prompt=negative_prompt, |
|
init_image=init_image, |
|
mask_image=mask_image, |
|
num_inference_steps=num_inference_steps, |
|
guidance_scale=guidance_scale, |
|
strength=strength, |
|
num_images_per_prompt=num_images_per_prompt, |
|
eta=eta, |
|
generator=generator, |
|
max_embeddings_multiples=max_embeddings_multiples, |
|
output_type=output_type, |
|
return_dict=return_dict, |
|
callback=callback, |
|
callback_steps=callback_steps, |
|
**kwargs, |
|
) |
|
|
|
|
|
|
|
|
|
|
|
def cond_fn( |
|
self, |
|
latents, |
|
timestep, |
|
index, |
|
text_embeddings, |
|
noise_pred_original, |
|
guide_embeddings_clip, |
|
clip_guidance_scale, |
|
num_cutouts, |
|
use_cutouts=True, |
|
): |
|
if len(latents) == 1: |
|
return self.cond_fn1( |
|
latents, |
|
timestep, |
|
index, |
|
text_embeddings, |
|
noise_pred_original, |
|
guide_embeddings_clip, |
|
clip_guidance_scale, |
|
num_cutouts, |
|
use_cutouts, |
|
) |
|
|
|
noise_pred = [] |
|
cond_latents = [] |
|
for i in range(len(latents)): |
|
lat1 = latents[i].unsqueeze(0) |
|
tem1 = text_embeddings[i].unsqueeze(0) |
|
npo1 = noise_pred_original[i].unsqueeze(0) |
|
gem1 = guide_embeddings_clip[i].unsqueeze(0) |
|
npr1, cla1 = self.cond_fn1(lat1, timestep, index, tem1, npo1, gem1, clip_guidance_scale, num_cutouts, use_cutouts) |
|
noise_pred.append(npr1) |
|
cond_latents.append(cla1) |
|
|
|
noise_pred = torch.cat(noise_pred) |
|
cond_latents = torch.cat(cond_latents) |
|
return noise_pred, cond_latents |
|
|
|
@torch.enable_grad() |
|
def cond_fn1( |
|
self, |
|
latents, |
|
timestep, |
|
index, |
|
text_embeddings, |
|
noise_pred_original, |
|
guide_embeddings_clip, |
|
clip_guidance_scale, |
|
num_cutouts, |
|
use_cutouts=True, |
|
): |
|
latents = latents.detach().requires_grad_() |
|
|
|
if isinstance(self.scheduler, LMSDiscreteScheduler): |
|
sigma = self.scheduler.sigmas[index] |
|
|
|
latent_model_input = latents / ((sigma**2 + 1) ** 0.5) |
|
else: |
|
latent_model_input = latents |
|
|
|
|
|
noise_pred = self.unet(latent_model_input, timestep, encoder_hidden_states=text_embeddings).sample |
|
|
|
if isinstance(self.scheduler, (PNDMScheduler, DDIMScheduler)): |
|
alpha_prod_t = self.scheduler.alphas_cumprod[timestep] |
|
beta_prod_t = 1 - alpha_prod_t |
|
|
|
|
|
pred_original_sample = (latents - beta_prod_t ** (0.5) * noise_pred) / alpha_prod_t ** (0.5) |
|
|
|
fac = torch.sqrt(beta_prod_t) |
|
sample = pred_original_sample * (fac) + latents * (1 - fac) |
|
elif isinstance(self.scheduler, LMSDiscreteScheduler): |
|
sigma = self.scheduler.sigmas[index] |
|
sample = latents - sigma * noise_pred |
|
else: |
|
raise ValueError(f"scheduler type {type(self.scheduler)} not supported") |
|
|
|
sample = 1 / 0.18215 * sample |
|
image = self.vae.decode(sample).sample |
|
image = (image / 2 + 0.5).clamp(0, 1) |
|
|
|
if use_cutouts: |
|
image = self.make_cutouts(image, num_cutouts) |
|
else: |
|
image = transforms.Resize(FEATURE_EXTRACTOR_SIZE)(image) |
|
image = self.normalize(image).to(latents.dtype) |
|
|
|
image_embeddings_clip = self.clip_model.get_image_features(image) |
|
image_embeddings_clip = image_embeddings_clip / image_embeddings_clip.norm(p=2, dim=-1, keepdim=True) |
|
|
|
if use_cutouts: |
|
dists = spherical_dist_loss(image_embeddings_clip, guide_embeddings_clip) |
|
dists = dists.view([num_cutouts, sample.shape[0], -1]) |
|
loss = dists.sum(2).mean(0).sum() * clip_guidance_scale |
|
else: |
|
|
|
loss = spherical_dist_loss(image_embeddings_clip, guide_embeddings_clip).mean() * clip_guidance_scale |
|
|
|
grads = -torch.autograd.grad(loss, latents)[0] |
|
|
|
if isinstance(self.scheduler, LMSDiscreteScheduler): |
|
latents = latents.detach() + grads * (sigma**2) |
|
noise_pred = noise_pred_original |
|
else: |
|
noise_pred = noise_pred_original - torch.sqrt(beta_prod_t) * grads |
|
return noise_pred, latents |
|
|
|
|
|
def cond_fn_vgg16(self, latents, timestep, index, text_embeddings, noise_pred_original, guide_embeddings, guidance_scale): |
|
if len(latents) == 1: |
|
return self.cond_fn_vgg16_b1( |
|
latents, timestep, index, text_embeddings, noise_pred_original, guide_embeddings, guidance_scale |
|
) |
|
|
|
noise_pred = [] |
|
cond_latents = [] |
|
for i in range(len(latents)): |
|
lat1 = latents[i].unsqueeze(0) |
|
tem1 = text_embeddings[i].unsqueeze(0) |
|
npo1 = noise_pred_original[i].unsqueeze(0) |
|
gem1 = guide_embeddings[i].unsqueeze(0) |
|
npr1, cla1 = self.cond_fn_vgg16_b1(lat1, timestep, index, tem1, npo1, gem1, guidance_scale) |
|
noise_pred.append(npr1) |
|
cond_latents.append(cla1) |
|
|
|
noise_pred = torch.cat(noise_pred) |
|
cond_latents = torch.cat(cond_latents) |
|
return noise_pred, cond_latents |
|
|
|
|
|
@torch.enable_grad() |
|
def cond_fn_vgg16_b1(self, latents, timestep, index, text_embeddings, noise_pred_original, guide_embeddings, guidance_scale): |
|
latents = latents.detach().requires_grad_() |
|
|
|
if isinstance(self.scheduler, LMSDiscreteScheduler): |
|
sigma = self.scheduler.sigmas[index] |
|
|
|
latent_model_input = latents / ((sigma**2 + 1) ** 0.5) |
|
else: |
|
latent_model_input = latents |
|
|
|
|
|
noise_pred = self.unet(latent_model_input, timestep, encoder_hidden_states=text_embeddings).sample |
|
|
|
if isinstance(self.scheduler, (PNDMScheduler, DDIMScheduler)): |
|
alpha_prod_t = self.scheduler.alphas_cumprod[timestep] |
|
beta_prod_t = 1 - alpha_prod_t |
|
|
|
|
|
pred_original_sample = (latents - beta_prod_t ** (0.5) * noise_pred) / alpha_prod_t ** (0.5) |
|
|
|
fac = torch.sqrt(beta_prod_t) |
|
sample = pred_original_sample * (fac) + latents * (1 - fac) |
|
elif isinstance(self.scheduler, LMSDiscreteScheduler): |
|
sigma = self.scheduler.sigmas[index] |
|
sample = latents - sigma * noise_pred |
|
else: |
|
raise ValueError(f"scheduler type {type(self.scheduler)} not supported") |
|
|
|
sample = 1 / 0.18215 * sample |
|
image = self.vae.decode(sample).sample |
|
image = (image / 2 + 0.5).clamp(0, 1) |
|
image = transforms.Resize((image.shape[-2] // VGG16_INPUT_RESIZE_DIV, image.shape[-1] // VGG16_INPUT_RESIZE_DIV))(image) |
|
image = self.vgg16_normalize(image).to(latents.dtype) |
|
|
|
image_embeddings = self.vgg16_feat_model(image)["feat"] |
|
|
|
|
|
loss = ( |
|
(image_embeddings - guide_embeddings) ** 2 |
|
).mean() * guidance_scale |
|
|
|
grads = -torch.autograd.grad(loss, latents)[0] |
|
if isinstance(self.scheduler, LMSDiscreteScheduler): |
|
latents = latents.detach() + grads * (sigma**2) |
|
noise_pred = noise_pred_original |
|
else: |
|
noise_pred = noise_pred_original - torch.sqrt(beta_prod_t) * grads |
|
return noise_pred, latents |
|
|
|
|
|
class MakeCutouts(torch.nn.Module): |
|
def __init__(self, cut_size, cut_power=1.0): |
|
super().__init__() |
|
|
|
self.cut_size = cut_size |
|
self.cut_power = cut_power |
|
|
|
def forward(self, pixel_values, num_cutouts): |
|
sideY, sideX = pixel_values.shape[2:4] |
|
max_size = min(sideX, sideY) |
|
min_size = min(sideX, sideY, self.cut_size) |
|
cutouts = [] |
|
for _ in range(num_cutouts): |
|
size = int(torch.rand([]) ** self.cut_power * (max_size - min_size) + min_size) |
|
offsetx = torch.randint(0, sideX - size + 1, ()) |
|
offsety = torch.randint(0, sideY - size + 1, ()) |
|
cutout = pixel_values[:, :, offsety : offsety + size, offsetx : offsetx + size] |
|
cutouts.append(torch.nn.functional.adaptive_avg_pool2d(cutout, self.cut_size)) |
|
return torch.cat(cutouts) |
|
|
|
|
|
def spherical_dist_loss(x, y): |
|
x = torch.nn.functional.normalize(x, dim=-1) |
|
y = torch.nn.functional.normalize(y, dim=-1) |
|
return (x - y).norm(dim=-1).div(2).arcsin().pow(2).mul(2) |
|
|
|
|
|
re_attention = re.compile( |
|
r""" |
|
\\\(| |
|
\\\)| |
|
\\\[| |
|
\\]| |
|
\\\\| |
|
\\| |
|
\(| |
|
\[| |
|
:([+-]?[.\d]+)\)| |
|
\)| |
|
]| |
|
[^\\()\[\]:]+| |
|
: |
|
""", |
|
re.X, |
|
) |
|
|
|
|
|
def parse_prompt_attention(text): |
|
""" |
|
Parses a string with attention tokens and returns a list of pairs: text and its associated weight. |
|
Accepted tokens are: |
|
(abc) - increases attention to abc by a multiplier of 1.1 |
|
(abc:3.12) - increases attention to abc by a multiplier of 3.12 |
|
[abc] - decreases attention to abc by a multiplier of 1.1 |
|
\( - literal character '(' |
|
\[ - literal character '[' |
|
\) - literal character ')' |
|
\] - literal character ']' |
|
\\ - literal character '\' |
|
anything else - just text |
|
>>> parse_prompt_attention('normal text') |
|
[['normal text', 1.0]] |
|
>>> parse_prompt_attention('an (important) word') |
|
[['an ', 1.0], ['important', 1.1], [' word', 1.0]] |
|
>>> parse_prompt_attention('(unbalanced') |
|
[['unbalanced', 1.1]] |
|
>>> parse_prompt_attention('\(literal\]') |
|
[['(literal]', 1.0]] |
|
>>> parse_prompt_attention('(unnecessary)(parens)') |
|
[['unnecessaryparens', 1.1]] |
|
>>> parse_prompt_attention('a (((house:1.3)) [on] a (hill:0.5), sun, (((sky))).') |
|
[['a ', 1.0], |
|
['house', 1.5730000000000004], |
|
[' ', 1.1], |
|
['on', 1.0], |
|
[' a ', 1.1], |
|
['hill', 0.55], |
|
[', sun, ', 1.1], |
|
['sky', 1.4641000000000006], |
|
['.', 1.1]] |
|
""" |
|
|
|
res = [] |
|
round_brackets = [] |
|
square_brackets = [] |
|
|
|
round_bracket_multiplier = 1.1 |
|
square_bracket_multiplier = 1 / 1.1 |
|
|
|
def multiply_range(start_position, multiplier): |
|
for p in range(start_position, len(res)): |
|
res[p][1] *= multiplier |
|
|
|
|
|
text = text.replace("BREAK", "\\BREAK\\") |
|
|
|
for m in re_attention.finditer(text): |
|
text = m.group(0) |
|
weight = m.group(1) |
|
|
|
if text.startswith("\\"): |
|
res.append([text[1:], 1.0]) |
|
elif text == "(": |
|
round_brackets.append(len(res)) |
|
elif text == "[": |
|
square_brackets.append(len(res)) |
|
elif weight is not None and len(round_brackets) > 0: |
|
multiply_range(round_brackets.pop(), float(weight)) |
|
elif text == ")" and len(round_brackets) > 0: |
|
multiply_range(round_brackets.pop(), round_bracket_multiplier) |
|
elif text == "]" and len(square_brackets) > 0: |
|
multiply_range(square_brackets.pop(), square_bracket_multiplier) |
|
else: |
|
res.append([text, 1.0]) |
|
|
|
for pos in round_brackets: |
|
multiply_range(pos, round_bracket_multiplier) |
|
|
|
for pos in square_brackets: |
|
multiply_range(pos, square_bracket_multiplier) |
|
|
|
if len(res) == 0: |
|
res = [["", 1.0]] |
|
|
|
|
|
i = 0 |
|
while i + 1 < len(res): |
|
if res[i][1] == res[i + 1][1] and res[i][0].strip() != "BREAK" and res[i + 1][0].strip() != "BREAK": |
|
res[i][0] += res[i + 1][0] |
|
res.pop(i + 1) |
|
else: |
|
i += 1 |
|
|
|
return res |
|
|
|
|
|
def get_prompts_with_weights(pipe: PipelineLike, prompt: List[str], max_length: int, layer=None): |
|
r""" |
|
Tokenize a list of prompts and return its tokens with weights of each token. |
|
No padding, starting or ending token is included. |
|
""" |
|
tokens = [] |
|
weights = [] |
|
truncated = False |
|
|
|
for text in prompt: |
|
texts_and_weights = parse_prompt_attention(text) |
|
text_token = [] |
|
text_weight = [] |
|
for word, weight in texts_and_weights: |
|
if word.strip() == "BREAK": |
|
|
|
pad_len = pipe.tokenizer.model_max_length - (len(text_token) % pipe.tokenizer.model_max_length) |
|
logger.info(f"BREAK pad_len: {pad_len}") |
|
for i in range(pad_len): |
|
|
|
|
|
|
|
|
|
text_token.append(pipe.tokenizer.pad_token_id) |
|
text_weight.append(1.0) |
|
continue |
|
|
|
|
|
token = pipe.tokenizer(word).input_ids[1:-1] |
|
|
|
token = pipe.replace_token(token, layer=layer) |
|
|
|
text_token += token |
|
|
|
text_weight += [weight] * len(token) |
|
|
|
if len(text_token) > max_length: |
|
truncated = True |
|
break |
|
|
|
if len(text_token) > max_length: |
|
truncated = True |
|
text_token = text_token[:max_length] |
|
text_weight = text_weight[:max_length] |
|
tokens.append(text_token) |
|
weights.append(text_weight) |
|
if truncated: |
|
logger.warning("Prompt was truncated. Try to shorten the prompt or increase max_embeddings_multiples") |
|
return tokens, weights |
|
|
|
|
|
def pad_tokens_and_weights(tokens, weights, max_length, bos, eos, pad, no_boseos_middle=True, chunk_length=77): |
|
r""" |
|
Pad the tokens (with starting and ending tokens) and weights (with 1.0) to max_length. |
|
""" |
|
max_embeddings_multiples = (max_length - 2) // (chunk_length - 2) |
|
weights_length = max_length if no_boseos_middle else max_embeddings_multiples * chunk_length |
|
for i in range(len(tokens)): |
|
tokens[i] = [bos] + tokens[i] + [eos] + [pad] * (max_length - 2 - len(tokens[i])) |
|
if no_boseos_middle: |
|
weights[i] = [1.0] + weights[i] + [1.0] * (max_length - 1 - len(weights[i])) |
|
else: |
|
w = [] |
|
if len(weights[i]) == 0: |
|
w = [1.0] * weights_length |
|
else: |
|
for j in range(max_embeddings_multiples): |
|
w.append(1.0) |
|
w += weights[i][j * (chunk_length - 2) : min(len(weights[i]), (j + 1) * (chunk_length - 2))] |
|
w.append(1.0) |
|
w += [1.0] * (weights_length - len(w)) |
|
weights[i] = w[:] |
|
|
|
return tokens, weights |
|
|
|
|
|
def get_unweighted_text_embeddings( |
|
pipe: PipelineLike, |
|
text_input: torch.Tensor, |
|
chunk_length: int, |
|
clip_skip: int, |
|
eos: int, |
|
pad: int, |
|
no_boseos_middle: Optional[bool] = True, |
|
): |
|
""" |
|
When the length of tokens is a multiple of the capacity of the text encoder, |
|
it should be split into chunks and sent to the text encoder individually. |
|
""" |
|
max_embeddings_multiples = (text_input.shape[1] - 2) // (chunk_length - 2) |
|
if max_embeddings_multiples > 1: |
|
text_embeddings = [] |
|
for i in range(max_embeddings_multiples): |
|
|
|
text_input_chunk = text_input[:, i * (chunk_length - 2) : (i + 1) * (chunk_length - 2) + 2].clone() |
|
|
|
|
|
text_input_chunk[:, 0] = text_input[0, 0] |
|
if pad == eos: |
|
text_input_chunk[:, -1] = text_input[0, -1] |
|
else: |
|
for j in range(len(text_input_chunk)): |
|
if text_input_chunk[j, -1] != eos and text_input_chunk[j, -1] != pad: |
|
text_input_chunk[j, -1] = eos |
|
if text_input_chunk[j, 1] == pad: |
|
text_input_chunk[j, 1] = eos |
|
|
|
if clip_skip is None or clip_skip == 1: |
|
text_embedding = pipe.text_encoder(text_input_chunk)[0] |
|
else: |
|
enc_out = pipe.text_encoder(text_input_chunk, output_hidden_states=True, return_dict=True) |
|
text_embedding = enc_out["hidden_states"][-clip_skip] |
|
text_embedding = pipe.text_encoder.text_model.final_layer_norm(text_embedding) |
|
|
|
if no_boseos_middle: |
|
if i == 0: |
|
|
|
text_embedding = text_embedding[:, :-1] |
|
elif i == max_embeddings_multiples - 1: |
|
|
|
text_embedding = text_embedding[:, 1:] |
|
else: |
|
|
|
text_embedding = text_embedding[:, 1:-1] |
|
|
|
text_embeddings.append(text_embedding) |
|
text_embeddings = torch.concat(text_embeddings, axis=1) |
|
else: |
|
if clip_skip is None or clip_skip == 1: |
|
text_embeddings = pipe.text_encoder(text_input)[0] |
|
else: |
|
enc_out = pipe.text_encoder(text_input, output_hidden_states=True, return_dict=True) |
|
text_embeddings = enc_out["hidden_states"][-clip_skip] |
|
text_embeddings = pipe.text_encoder.text_model.final_layer_norm(text_embeddings) |
|
return text_embeddings |
|
|
|
|
|
def get_weighted_text_embeddings( |
|
pipe: PipelineLike, |
|
prompt: Union[str, List[str]], |
|
uncond_prompt: Optional[Union[str, List[str]]] = None, |
|
max_embeddings_multiples: Optional[int] = 1, |
|
no_boseos_middle: Optional[bool] = False, |
|
skip_parsing: Optional[bool] = False, |
|
skip_weighting: Optional[bool] = False, |
|
clip_skip=None, |
|
layer=None, |
|
**kwargs, |
|
): |
|
r""" |
|
Prompts can be assigned with local weights using brackets. For example, |
|
prompt 'A (very beautiful) masterpiece' highlights the words 'very beautiful', |
|
and the embedding tokens corresponding to the words get multiplied by a constant, 1.1. |
|
Also, to regularize of the embedding, the weighted embedding would be scaled to preserve the original mean. |
|
Args: |
|
pipe (`DiffusionPipeline`): |
|
Pipe to provide access to the tokenizer and the text encoder. |
|
prompt (`str` or `List[str]`): |
|
The prompt or prompts to guide the image generation. |
|
uncond_prompt (`str` or `List[str]`): |
|
The unconditional prompt or prompts for guide the image generation. If unconditional prompt |
|
is provided, the embeddings of prompt and uncond_prompt are concatenated. |
|
max_embeddings_multiples (`int`, *optional*, defaults to `1`): |
|
The max multiple length of prompt embeddings compared to the max output length of text encoder. |
|
no_boseos_middle (`bool`, *optional*, defaults to `False`): |
|
If the length of text token is multiples of the capacity of text encoder, whether reserve the starting and |
|
ending token in each of the chunk in the middle. |
|
skip_parsing (`bool`, *optional*, defaults to `False`): |
|
Skip the parsing of brackets. |
|
skip_weighting (`bool`, *optional*, defaults to `False`): |
|
Skip the weighting. When the parsing is skipped, it is forced True. |
|
""" |
|
max_length = (pipe.tokenizer.model_max_length - 2) * max_embeddings_multiples + 2 |
|
if isinstance(prompt, str): |
|
prompt = [prompt] |
|
|
|
|
|
new_prompts = [] |
|
for p in prompt: |
|
new_prompts.extend(p.split(" AND ")) |
|
prompt = new_prompts |
|
|
|
if not skip_parsing: |
|
prompt_tokens, prompt_weights = get_prompts_with_weights(pipe, prompt, max_length - 2, layer=layer) |
|
if uncond_prompt is not None: |
|
if isinstance(uncond_prompt, str): |
|
uncond_prompt = [uncond_prompt] |
|
uncond_tokens, uncond_weights = get_prompts_with_weights(pipe, uncond_prompt, max_length - 2, layer=layer) |
|
else: |
|
prompt_tokens = [token[1:-1] for token in pipe.tokenizer(prompt, max_length=max_length, truncation=True).input_ids] |
|
prompt_weights = [[1.0] * len(token) for token in prompt_tokens] |
|
if uncond_prompt is not None: |
|
if isinstance(uncond_prompt, str): |
|
uncond_prompt = [uncond_prompt] |
|
uncond_tokens = [ |
|
token[1:-1] for token in pipe.tokenizer(uncond_prompt, max_length=max_length, truncation=True).input_ids |
|
] |
|
uncond_weights = [[1.0] * len(token) for token in uncond_tokens] |
|
|
|
|
|
max_length = max([len(token) for token in prompt_tokens]) |
|
if uncond_prompt is not None: |
|
max_length = max(max_length, max([len(token) for token in uncond_tokens])) |
|
|
|
max_embeddings_multiples = min( |
|
max_embeddings_multiples, |
|
(max_length - 1) // (pipe.tokenizer.model_max_length - 2) + 1, |
|
) |
|
max_embeddings_multiples = max(1, max_embeddings_multiples) |
|
max_length = (pipe.tokenizer.model_max_length - 2) * max_embeddings_multiples + 2 |
|
|
|
|
|
bos = pipe.tokenizer.bos_token_id |
|
eos = pipe.tokenizer.eos_token_id |
|
pad = pipe.tokenizer.pad_token_id |
|
prompt_tokens, prompt_weights = pad_tokens_and_weights( |
|
prompt_tokens, |
|
prompt_weights, |
|
max_length, |
|
bos, |
|
eos, |
|
pad, |
|
no_boseos_middle=no_boseos_middle, |
|
chunk_length=pipe.tokenizer.model_max_length, |
|
) |
|
prompt_tokens = torch.tensor(prompt_tokens, dtype=torch.long, device=pipe.device) |
|
if uncond_prompt is not None: |
|
uncond_tokens, uncond_weights = pad_tokens_and_weights( |
|
uncond_tokens, |
|
uncond_weights, |
|
max_length, |
|
bos, |
|
eos, |
|
pad, |
|
no_boseos_middle=no_boseos_middle, |
|
chunk_length=pipe.tokenizer.model_max_length, |
|
) |
|
uncond_tokens = torch.tensor(uncond_tokens, dtype=torch.long, device=pipe.device) |
|
|
|
|
|
text_embeddings = get_unweighted_text_embeddings( |
|
pipe, |
|
prompt_tokens, |
|
pipe.tokenizer.model_max_length, |
|
clip_skip, |
|
eos, |
|
pad, |
|
no_boseos_middle=no_boseos_middle, |
|
) |
|
prompt_weights = torch.tensor(prompt_weights, dtype=text_embeddings.dtype, device=pipe.device) |
|
if uncond_prompt is not None: |
|
uncond_embeddings = get_unweighted_text_embeddings( |
|
pipe, |
|
uncond_tokens, |
|
pipe.tokenizer.model_max_length, |
|
clip_skip, |
|
eos, |
|
pad, |
|
no_boseos_middle=no_boseos_middle, |
|
) |
|
uncond_weights = torch.tensor(uncond_weights, dtype=uncond_embeddings.dtype, device=pipe.device) |
|
|
|
|
|
|
|
|
|
if (not skip_parsing) and (not skip_weighting): |
|
previous_mean = text_embeddings.float().mean(axis=[-2, -1]).to(text_embeddings.dtype) |
|
text_embeddings *= prompt_weights.unsqueeze(-1) |
|
current_mean = text_embeddings.float().mean(axis=[-2, -1]).to(text_embeddings.dtype) |
|
text_embeddings *= (previous_mean / current_mean).unsqueeze(-1).unsqueeze(-1) |
|
if uncond_prompt is not None: |
|
previous_mean = uncond_embeddings.float().mean(axis=[-2, -1]).to(uncond_embeddings.dtype) |
|
uncond_embeddings *= uncond_weights.unsqueeze(-1) |
|
current_mean = uncond_embeddings.float().mean(axis=[-2, -1]).to(uncond_embeddings.dtype) |
|
uncond_embeddings *= (previous_mean / current_mean).unsqueeze(-1).unsqueeze(-1) |
|
|
|
if uncond_prompt is not None: |
|
return text_embeddings, uncond_embeddings, prompt_tokens |
|
return text_embeddings, None, prompt_tokens |
|
|
|
|
|
def preprocess_guide_image(image): |
|
image = image.resize(FEATURE_EXTRACTOR_SIZE, resample=Image.NEAREST) |
|
image = np.array(image).astype(np.float32) / 255.0 |
|
image = image[None].transpose(0, 3, 1, 2) |
|
image = torch.from_numpy(image) |
|
return image |
|
|
|
|
|
|
|
def preprocess_vgg16_guide_image(image, size): |
|
image = image.resize(size, resample=Image.NEAREST) |
|
image = np.array(image).astype(np.float32) / 255.0 |
|
image = image[None].transpose(0, 3, 1, 2) |
|
image = torch.from_numpy(image) |
|
return image |
|
|
|
|
|
def preprocess_image(image): |
|
w, h = image.size |
|
w, h = map(lambda x: x - x % 32, (w, h)) |
|
image = image.resize((w, h), resample=PIL.Image.LANCZOS) |
|
image = np.array(image).astype(np.float32) / 255.0 |
|
image = image[None].transpose(0, 3, 1, 2) |
|
image = torch.from_numpy(image) |
|
return 2.0 * image - 1.0 |
|
|
|
|
|
def preprocess_mask(mask): |
|
mask = mask.convert("L") |
|
w, h = mask.size |
|
w, h = map(lambda x: x - x % 32, (w, h)) |
|
mask = mask.resize((w // 8, h // 8), resample=PIL.Image.BILINEAR) |
|
mask = np.array(mask).astype(np.float32) / 255.0 |
|
mask = np.tile(mask, (4, 1, 1)) |
|
mask = mask[None].transpose(0, 1, 2, 3) |
|
mask = 1 - mask |
|
mask = torch.from_numpy(mask) |
|
return mask |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
RE_DYNAMIC_PROMPT = re.compile(r"\{((e|E)\$\$)?(([\d\-]+)\$\$)?(([^\|\}]+?)\$\$)?(.+?((\|).+?)*?)\}") |
|
|
|
|
|
def handle_dynamic_prompt_variants(prompt, repeat_count): |
|
founds = list(RE_DYNAMIC_PROMPT.finditer(prompt)) |
|
if not founds: |
|
return [prompt] |
|
|
|
|
|
enumerating = False |
|
replacers = [] |
|
for found in founds: |
|
|
|
found_enumerating = found.group(2) is not None |
|
enumerating = enumerating or found_enumerating |
|
|
|
separator = ", " if found.group(6) is None else found.group(6) |
|
variants = found.group(7).split("|") |
|
|
|
|
|
count_range = found.group(4) |
|
if count_range is None: |
|
count_range = [1, 1] |
|
else: |
|
count_range = count_range.split("-") |
|
if len(count_range) == 1: |
|
count_range = [int(count_range[0]), int(count_range[0])] |
|
elif len(count_range) == 2: |
|
count_range = [int(count_range[0]), int(count_range[1])] |
|
else: |
|
logger.warning(f"invalid count range: {count_range}") |
|
count_range = [1, 1] |
|
if count_range[0] > count_range[1]: |
|
count_range = [count_range[1], count_range[0]] |
|
if count_range[0] < 0: |
|
count_range[0] = 0 |
|
if count_range[1] > len(variants): |
|
count_range[1] = len(variants) |
|
|
|
if found_enumerating: |
|
|
|
def make_replacer_enum(vari, cr, sep): |
|
def replacer(): |
|
values = [] |
|
for count in range(cr[0], cr[1] + 1): |
|
for comb in itertools.combinations(vari, count): |
|
values.append(sep.join(comb)) |
|
return values |
|
|
|
return replacer |
|
|
|
replacers.append(make_replacer_enum(variants, count_range, separator)) |
|
else: |
|
|
|
def make_replacer_single(vari, cr, sep): |
|
def replacer(): |
|
count = random.randint(cr[0], cr[1]) |
|
comb = random.sample(vari, count) |
|
return [sep.join(comb)] |
|
|
|
return replacer |
|
|
|
replacers.append(make_replacer_single(variants, count_range, separator)) |
|
|
|
|
|
if not enumerating: |
|
|
|
prompts = [] |
|
for _ in range(repeat_count): |
|
current = prompt |
|
for found, replacer in zip(founds, replacers): |
|
current = current.replace(found.group(0), replacer()[0], 1) |
|
prompts.append(current) |
|
else: |
|
|
|
prompts = [prompt] |
|
|
|
for found, replacer in zip(founds, replacers): |
|
if found.group(2) is not None: |
|
|
|
new_prompts = [] |
|
for current in prompts: |
|
replecements = replacer() |
|
for replecement in replecements: |
|
new_prompts.append(current.replace(found.group(0), replecement, 1)) |
|
prompts = new_prompts |
|
|
|
for found, replacer in zip(founds, replacers): |
|
|
|
if found.group(2) is None: |
|
for i in range(len(prompts)): |
|
prompts[i] = prompts[i].replace(found.group(0), replacer()[0], 1) |
|
|
|
return prompts |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class BatchDataBase(NamedTuple): |
|
|
|
step: int |
|
prompt: str |
|
negative_prompt: str |
|
seed: int |
|
init_image: Any |
|
mask_image: Any |
|
clip_prompt: str |
|
guide_image: Any |
|
raw_prompt: str |
|
|
|
|
|
class BatchDataExt(NamedTuple): |
|
|
|
width: int |
|
height: int |
|
steps: int |
|
scale: float |
|
negative_scale: float |
|
strength: float |
|
network_muls: Tuple[float] |
|
num_sub_prompts: int |
|
|
|
|
|
class BatchData(NamedTuple): |
|
return_latents: bool |
|
base: BatchDataBase |
|
ext: BatchDataExt |
|
|
|
|
|
def main(args): |
|
if args.fp16: |
|
dtype = torch.float16 |
|
elif args.bf16: |
|
dtype = torch.bfloat16 |
|
else: |
|
dtype = torch.float32 |
|
|
|
highres_fix = args.highres_fix_scale is not None |
|
|
|
|
|
if args.v_parameterization and not args.v2: |
|
logger.warning("v_parameterization should be with v2 / v1でv_parameterizationを使用することは想定されていません") |
|
if args.v2 and args.clip_skip is not None: |
|
logger.warning("v2 with clip_skip will be unexpected / v2でclip_skipを使用することは想定されていません") |
|
|
|
|
|
if not os.path.isfile(args.ckpt): |
|
files = glob.glob(args.ckpt) |
|
if len(files) == 1: |
|
args.ckpt = files[0] |
|
|
|
use_stable_diffusion_format = os.path.isfile(args.ckpt) |
|
if use_stable_diffusion_format: |
|
logger.info("load StableDiffusion checkpoint") |
|
text_encoder, vae, unet = model_util.load_models_from_stable_diffusion_checkpoint(args.v2, args.ckpt) |
|
else: |
|
logger.info("load Diffusers pretrained models") |
|
loading_pipe = StableDiffusionPipeline.from_pretrained(args.ckpt, safety_checker=None, torch_dtype=dtype) |
|
text_encoder = loading_pipe.text_encoder |
|
vae = loading_pipe.vae |
|
unet = loading_pipe.unet |
|
tokenizer = loading_pipe.tokenizer |
|
del loading_pipe |
|
|
|
|
|
original_unet = UNet2DConditionModel( |
|
unet.config.sample_size, |
|
unet.config.attention_head_dim, |
|
unet.config.cross_attention_dim, |
|
unet.config.use_linear_projection, |
|
unet.config.upcast_attention, |
|
) |
|
original_unet.load_state_dict(unet.state_dict()) |
|
unet = original_unet |
|
unet: InferUNet2DConditionModel = InferUNet2DConditionModel(unet) |
|
|
|
|
|
if args.vae is not None: |
|
vae = model_util.load_vae(args.vae, dtype) |
|
logger.info("additional VAE loaded") |
|
|
|
|
|
|
|
|
|
|
|
|
|
if args.clip_guidance_scale > 0.0 or args.clip_image_guidance_scale: |
|
logger.info("prepare clip model") |
|
clip_model = CLIPModel.from_pretrained(CLIP_MODEL_PATH, torch_dtype=dtype) |
|
else: |
|
clip_model = None |
|
|
|
if args.vgg16_guidance_scale > 0.0: |
|
logger.info("prepare resnet model") |
|
vgg16_model = torchvision.models.vgg16(torchvision.models.VGG16_Weights.IMAGENET1K_V1) |
|
else: |
|
vgg16_model = None |
|
|
|
|
|
if not args.diffusers_xformers: |
|
mem_eff = not (args.xformers or args.sdpa) |
|
replace_unet_modules(unet, mem_eff, args.xformers, args.sdpa) |
|
replace_vae_modules(vae, mem_eff, args.xformers, args.sdpa) |
|
|
|
|
|
logger.info("loading tokenizer") |
|
if use_stable_diffusion_format: |
|
tokenizer = train_util.load_tokenizer(args) |
|
|
|
|
|
sched_init_args = {} |
|
scheduler_num_noises_per_step = 1 |
|
if args.sampler == "ddim": |
|
scheduler_cls = DDIMScheduler |
|
scheduler_module = diffusers.schedulers.scheduling_ddim |
|
elif args.sampler == "ddpm": |
|
scheduler_cls = DDPMScheduler |
|
scheduler_module = diffusers.schedulers.scheduling_ddpm |
|
elif args.sampler == "pndm": |
|
scheduler_cls = PNDMScheduler |
|
scheduler_module = diffusers.schedulers.scheduling_pndm |
|
elif args.sampler == "lms" or args.sampler == "k_lms": |
|
scheduler_cls = LMSDiscreteScheduler |
|
scheduler_module = diffusers.schedulers.scheduling_lms_discrete |
|
elif args.sampler == "euler" or args.sampler == "k_euler": |
|
scheduler_cls = EulerDiscreteScheduler |
|
scheduler_module = diffusers.schedulers.scheduling_euler_discrete |
|
elif args.sampler == "euler_a" or args.sampler == "k_euler_a": |
|
scheduler_cls = EulerAncestralDiscreteSchedulerGL |
|
scheduler_module = diffusers.schedulers.scheduling_euler_ancestral_discrete |
|
elif args.sampler == "dpmsolver" or args.sampler == "dpmsolver++": |
|
scheduler_cls = DPMSolverMultistepScheduler |
|
sched_init_args["algorithm_type"] = args.sampler |
|
scheduler_module = diffusers.schedulers.scheduling_dpmsolver_multistep |
|
elif args.sampler == "dpmsingle": |
|
scheduler_cls = DPMSolverSinglestepScheduler |
|
scheduler_module = diffusers.schedulers.scheduling_dpmsolver_singlestep |
|
elif args.sampler == "heun": |
|
scheduler_cls = HeunDiscreteScheduler |
|
scheduler_module = diffusers.schedulers.scheduling_heun_discrete |
|
elif args.sampler == "dpm_2" or args.sampler == "k_dpm_2": |
|
scheduler_cls = KDPM2DiscreteScheduler |
|
scheduler_module = diffusers.schedulers.scheduling_k_dpm_2_discrete |
|
elif args.sampler == "dpm_2_a" or args.sampler == "k_dpm_2_a": |
|
scheduler_cls = KDPM2AncestralDiscreteScheduler |
|
scheduler_module = diffusers.schedulers.scheduling_k_dpm_2_ancestral_discrete |
|
scheduler_num_noises_per_step = 2 |
|
|
|
if args.v_parameterization: |
|
sched_init_args["prediction_type"] = "v_prediction" |
|
|
|
|
|
|
|
|
|
class NoiseManager: |
|
def __init__(self): |
|
self.sampler_noises = None |
|
self.sampler_noise_index = 0 |
|
|
|
def reset_sampler_noises(self, noises): |
|
self.sampler_noise_index = 0 |
|
self.sampler_noises = noises |
|
|
|
def randn(self, shape, device=None, dtype=None, layout=None, generator=None): |
|
|
|
if self.sampler_noises is not None and self.sampler_noise_index < len(self.sampler_noises): |
|
noise = self.sampler_noises[self.sampler_noise_index] |
|
if shape != noise.shape: |
|
noise = None |
|
else: |
|
noise = None |
|
|
|
if noise == None: |
|
logger.warning(f"unexpected noise request: {self.sampler_noise_index}, {shape}") |
|
noise = torch.randn(shape, dtype=dtype, device=device, generator=generator) |
|
|
|
self.sampler_noise_index += 1 |
|
return noise |
|
|
|
class TorchRandReplacer: |
|
def __init__(self, noise_manager): |
|
self.noise_manager = noise_manager |
|
|
|
def __getattr__(self, item): |
|
if item == "randn": |
|
return self.noise_manager.randn |
|
if hasattr(torch, item): |
|
return getattr(torch, item) |
|
raise AttributeError("'{}' object has no attribute '{}'".format(type(self).__name__, item)) |
|
|
|
noise_manager = NoiseManager() |
|
if scheduler_module is not None: |
|
scheduler_module.torch = TorchRandReplacer(noise_manager) |
|
|
|
scheduler = scheduler_cls( |
|
num_train_timesteps=SCHEDULER_TIMESTEPS, |
|
beta_start=SCHEDULER_LINEAR_START, |
|
beta_end=SCHEDULER_LINEAR_END, |
|
beta_schedule=SCHEDLER_SCHEDULE, |
|
**sched_init_args, |
|
) |
|
|
|
|
|
if hasattr(scheduler.config, "clip_sample") and scheduler.config.clip_sample is False: |
|
logger.info("set clip_sample to True") |
|
scheduler.config.clip_sample = True |
|
|
|
|
|
device = get_preferred_device() |
|
|
|
|
|
if args.vae_slices: |
|
from library.slicing_vae import SlicingAutoencoderKL |
|
|
|
sli_vae = SlicingAutoencoderKL( |
|
act_fn="silu", |
|
block_out_channels=(128, 256, 512, 512), |
|
down_block_types=["DownEncoderBlock2D", "DownEncoderBlock2D", "DownEncoderBlock2D", "DownEncoderBlock2D"], |
|
in_channels=3, |
|
latent_channels=4, |
|
layers_per_block=2, |
|
norm_num_groups=32, |
|
out_channels=3, |
|
sample_size=512, |
|
up_block_types=["UpDecoderBlock2D", "UpDecoderBlock2D", "UpDecoderBlock2D", "UpDecoderBlock2D"], |
|
num_slices=args.vae_slices, |
|
) |
|
sli_vae.load_state_dict(vae.state_dict()) |
|
vae = sli_vae |
|
del sli_vae |
|
vae.to(dtype).to(device) |
|
vae.eval() |
|
|
|
text_encoder.to(dtype).to(device) |
|
unet.to(dtype).to(device) |
|
|
|
text_encoder.eval() |
|
unet.eval() |
|
|
|
if clip_model is not None: |
|
clip_model.to(dtype).to(device) |
|
clip_model.eval() |
|
if vgg16_model is not None: |
|
vgg16_model.to(dtype).to(device) |
|
vgg16_model.eval() |
|
|
|
|
|
if args.network_module: |
|
networks = [] |
|
network_default_muls = [] |
|
network_pre_calc = args.network_pre_calc |
|
|
|
|
|
if args.network_merge: |
|
network_merge = len(args.network_module) |
|
elif args.network_merge_n_models: |
|
network_merge = args.network_merge_n_models |
|
else: |
|
network_merge = 0 |
|
|
|
for i, network_module in enumerate(args.network_module): |
|
logger.info(f"import network module: {network_module}") |
|
imported_module = importlib.import_module(network_module) |
|
|
|
network_mul = 1.0 if args.network_mul is None or len(args.network_mul) <= i else args.network_mul[i] |
|
|
|
net_kwargs = {} |
|
if args.network_args and i < len(args.network_args): |
|
network_args = args.network_args[i] |
|
|
|
network_args = network_args.split(";") |
|
for net_arg in network_args: |
|
key, value = net_arg.split("=") |
|
net_kwargs[key] = value |
|
|
|
if args.network_weights is None or len(args.network_weights) <= i: |
|
raise ValueError("No weight. Weight is required.") |
|
|
|
network_weight = args.network_weights[i] |
|
logger.info(f"load network weights from: {network_weight}") |
|
|
|
if model_util.is_safetensors(network_weight) and args.network_show_meta: |
|
from safetensors.torch import safe_open |
|
|
|
with safe_open(network_weight, framework="pt") as f: |
|
metadata = f.metadata() |
|
if metadata is not None: |
|
logger.info(f"metadata for: {network_weight}: {metadata}") |
|
|
|
network, weights_sd = imported_module.create_network_from_weights( |
|
network_mul, network_weight, vae, text_encoder, unet, for_inference=True, **net_kwargs |
|
) |
|
if network is None: |
|
return |
|
|
|
mergeable = network.is_mergeable() |
|
if network_merge and not mergeable: |
|
logger.warning("network is not mergiable. ignore merge option.") |
|
|
|
if not mergeable or i >= network_merge: |
|
|
|
network.apply_to(text_encoder, unet) |
|
info = network.load_state_dict(weights_sd, False) |
|
logger.info(f"weights are loaded: {info}") |
|
|
|
if args.opt_channels_last: |
|
network.to(memory_format=torch.channels_last) |
|
network.to(dtype).to(device) |
|
|
|
if network_pre_calc: |
|
logger.info("backup original weights") |
|
network.backup_weights() |
|
|
|
networks.append(network) |
|
network_default_muls.append(network_mul) |
|
else: |
|
network.merge_to(text_encoder, unet, weights_sd, dtype, device) |
|
|
|
else: |
|
networks = [] |
|
|
|
|
|
upscaler = None |
|
if args.highres_fix_upscaler: |
|
logger.info(f"import upscaler module {args.highres_fix_upscaler}") |
|
imported_module = importlib.import_module(args.highres_fix_upscaler) |
|
|
|
us_kwargs = {} |
|
if args.highres_fix_upscaler_args: |
|
for net_arg in args.highres_fix_upscaler_args.split(";"): |
|
key, value = net_arg.split("=") |
|
us_kwargs[key] = value |
|
|
|
logger.info("create upscaler") |
|
upscaler = imported_module.create_upscaler(**us_kwargs) |
|
upscaler.to(dtype).to(device) |
|
|
|
|
|
control_nets: List[ControlNetInfo] = [] |
|
if args.control_net_models: |
|
for i, model in enumerate(args.control_net_models): |
|
prep_type = None if not args.control_net_preps or len(args.control_net_preps) <= i else args.control_net_preps[i] |
|
weight = 1.0 if not args.control_net_weights or len(args.control_net_weights) <= i else args.control_net_weights[i] |
|
ratio = 1.0 if not args.control_net_ratios or len(args.control_net_ratios) <= i else args.control_net_ratios[i] |
|
|
|
ctrl_unet, ctrl_net = original_control_net.load_control_net(args.v2, unet, model) |
|
prep = original_control_net.load_preprocess(prep_type) |
|
control_nets.append(ControlNetInfo(ctrl_unet, ctrl_net, prep, weight, ratio)) |
|
|
|
if args.opt_channels_last: |
|
logger.info(f"set optimizing: channels last") |
|
text_encoder.to(memory_format=torch.channels_last) |
|
vae.to(memory_format=torch.channels_last) |
|
unet.to(memory_format=torch.channels_last) |
|
if clip_model is not None: |
|
clip_model.to(memory_format=torch.channels_last) |
|
if networks: |
|
for network in networks: |
|
network.to(memory_format=torch.channels_last) |
|
if vgg16_model is not None: |
|
vgg16_model.to(memory_format=torch.channels_last) |
|
|
|
for cn in control_nets: |
|
cn.unet.to(memory_format=torch.channels_last) |
|
cn.net.to(memory_format=torch.channels_last) |
|
|
|
pipe = PipelineLike( |
|
device, |
|
vae, |
|
text_encoder, |
|
tokenizer, |
|
unet, |
|
scheduler, |
|
args.clip_skip, |
|
clip_model, |
|
args.clip_guidance_scale, |
|
args.clip_image_guidance_scale, |
|
vgg16_model, |
|
args.vgg16_guidance_scale, |
|
args.vgg16_guidance_layer, |
|
) |
|
pipe.set_control_nets(control_nets) |
|
logger.info("pipeline is ready.") |
|
|
|
if args.diffusers_xformers: |
|
pipe.enable_xformers_memory_efficient_attention() |
|
|
|
|
|
if args.ds_depth_1 is not None: |
|
unet.set_deep_shrink(args.ds_depth_1, args.ds_timesteps_1, args.ds_depth_2, args.ds_timesteps_2, args.ds_ratio) |
|
|
|
|
|
if args.gradual_latent_timesteps is not None: |
|
if args.gradual_latent_unsharp_params: |
|
us_params = args.gradual_latent_unsharp_params.split(",") |
|
us_ksize, us_sigma, us_strength = [float(v) for v in us_params[:3]] |
|
us_target_x = True if len(us_params) <= 3 else bool(int(us_params[3])) |
|
us_ksize = int(us_ksize) |
|
else: |
|
us_ksize, us_sigma, us_strength, us_target_x = None, None, None, None |
|
|
|
gradual_latent = GradualLatent( |
|
args.gradual_latent_ratio, |
|
args.gradual_latent_timesteps, |
|
args.gradual_latent_every_n_steps, |
|
args.gradual_latent_ratio_step, |
|
args.gradual_latent_s_noise, |
|
us_ksize, |
|
us_sigma, |
|
us_strength, |
|
us_target_x, |
|
) |
|
pipe.set_gradual_latent(gradual_latent) |
|
|
|
|
|
if args.XTI_embeddings: |
|
diffusers.models.UNet2DConditionModel.forward = unet_forward_XTI |
|
diffusers.models.unet_2d_blocks.CrossAttnDownBlock2D.forward = downblock_forward_XTI |
|
diffusers.models.unet_2d_blocks.CrossAttnUpBlock2D.forward = upblock_forward_XTI |
|
|
|
if args.textual_inversion_embeddings: |
|
token_ids_embeds = [] |
|
for embeds_file in args.textual_inversion_embeddings: |
|
if model_util.is_safetensors(embeds_file): |
|
from safetensors.torch import load_file |
|
|
|
data = load_file(embeds_file) |
|
else: |
|
data = torch.load(embeds_file, map_location="cpu") |
|
|
|
if "string_to_param" in data: |
|
data = data["string_to_param"] |
|
embeds = next(iter(data.values())) |
|
|
|
if type(embeds) != torch.Tensor: |
|
raise ValueError( |
|
f"weight file does not contains Tensor / 重みファイルのデータがTensorではありません: {embeds_file}" |
|
) |
|
|
|
num_vectors_per_token = embeds.size()[0] |
|
token_string = os.path.splitext(os.path.basename(embeds_file))[0] |
|
token_strings = [token_string] + [f"{token_string}{i+1}" for i in range(num_vectors_per_token - 1)] |
|
|
|
|
|
num_added_tokens = tokenizer.add_tokens(token_strings) |
|
assert ( |
|
num_added_tokens == num_vectors_per_token |
|
), f"tokenizer has same word to token string (filename). please rename the file / 指定した名前(ファイル名)のトークンが既に存在します。ファイルをリネームしてください: {embeds_file}" |
|
|
|
token_ids = tokenizer.convert_tokens_to_ids(token_strings) |
|
logger.info(f"Textual Inversion embeddings `{token_string}` loaded. Tokens are added: {token_ids}") |
|
assert ( |
|
min(token_ids) == token_ids[0] and token_ids[-1] == token_ids[0] + len(token_ids) - 1 |
|
), f"token ids is not ordered" |
|
assert len(tokenizer) - 1 == token_ids[-1], f"token ids is not end of tokenize: {len(tokenizer)}" |
|
|
|
if num_vectors_per_token > 1: |
|
pipe.add_token_replacement(token_ids[0], token_ids) |
|
|
|
token_ids_embeds.append((token_ids, embeds)) |
|
|
|
text_encoder.resize_token_embeddings(len(tokenizer)) |
|
token_embeds = text_encoder.get_input_embeddings().weight.data |
|
for token_ids, embeds in token_ids_embeds: |
|
for token_id, embed in zip(token_ids, embeds): |
|
token_embeds[token_id] = embed |
|
|
|
if args.XTI_embeddings: |
|
XTI_layers = [ |
|
"IN01", |
|
"IN02", |
|
"IN04", |
|
"IN05", |
|
"IN07", |
|
"IN08", |
|
"MID", |
|
"OUT03", |
|
"OUT04", |
|
"OUT05", |
|
"OUT06", |
|
"OUT07", |
|
"OUT08", |
|
"OUT09", |
|
"OUT10", |
|
"OUT11", |
|
] |
|
token_ids_embeds_XTI = [] |
|
for embeds_file in args.XTI_embeddings: |
|
if model_util.is_safetensors(embeds_file): |
|
from safetensors.torch import load_file |
|
|
|
data = load_file(embeds_file) |
|
else: |
|
data = torch.load(embeds_file, map_location="cpu") |
|
if set(data.keys()) != set(XTI_layers): |
|
raise ValueError("NOT XTI") |
|
embeds = torch.concat(list(data.values())) |
|
num_vectors_per_token = data["MID"].size()[0] |
|
|
|
token_string = os.path.splitext(os.path.basename(embeds_file))[0] |
|
token_strings = [token_string] + [f"{token_string}{i+1}" for i in range(num_vectors_per_token - 1)] |
|
|
|
|
|
num_added_tokens = tokenizer.add_tokens(token_strings) |
|
assert ( |
|
num_added_tokens == num_vectors_per_token |
|
), f"tokenizer has same word to token string (filename). please rename the file / 指定した名前(ファイル名)のトークンが既に存在します。ファイルをリネームしてください: {embeds_file}" |
|
|
|
token_ids = tokenizer.convert_tokens_to_ids(token_strings) |
|
logger.info(f"XTI embeddings `{token_string}` loaded. Tokens are added: {token_ids}") |
|
|
|
|
|
pipe.add_token_replacement(token_ids[0], token_ids) |
|
|
|
token_strings_XTI = [] |
|
for layer_name in XTI_layers: |
|
token_strings_XTI += [f"{t}_{layer_name}" for t in token_strings] |
|
tokenizer.add_tokens(token_strings_XTI) |
|
token_ids_XTI = tokenizer.convert_tokens_to_ids(token_strings_XTI) |
|
token_ids_embeds_XTI.append((token_ids_XTI, embeds)) |
|
for t in token_ids: |
|
t_XTI_dic = {} |
|
for i, layer_name in enumerate(XTI_layers): |
|
t_XTI_dic[layer_name] = t + (i + 1) * num_added_tokens |
|
pipe.add_token_replacement_XTI(t, t_XTI_dic) |
|
|
|
text_encoder.resize_token_embeddings(len(tokenizer)) |
|
token_embeds = text_encoder.get_input_embeddings().weight.data |
|
for token_ids, embeds in token_ids_embeds_XTI: |
|
for token_id, embed in zip(token_ids, embeds): |
|
token_embeds[token_id] = embed |
|
|
|
|
|
if args.from_file is not None: |
|
logger.info(f"reading prompts from {args.from_file}") |
|
with open(args.from_file, "r", encoding="utf-8") as f: |
|
prompt_list = f.read().splitlines() |
|
prompt_list = [d for d in prompt_list if len(d.strip()) > 0 and d[0] != "#"] |
|
elif args.prompt is not None: |
|
prompt_list = [args.prompt] |
|
else: |
|
prompt_list = [] |
|
|
|
if args.interactive: |
|
args.n_iter = 1 |
|
|
|
|
|
def load_images(path): |
|
if os.path.isfile(path): |
|
paths = [path] |
|
else: |
|
paths = ( |
|
glob.glob(os.path.join(path, "*.png")) |
|
+ glob.glob(os.path.join(path, "*.jpg")) |
|
+ glob.glob(os.path.join(path, "*.jpeg")) |
|
+ glob.glob(os.path.join(path, "*.webp")) |
|
) |
|
paths.sort() |
|
|
|
images = [] |
|
for p in paths: |
|
image = Image.open(p) |
|
if image.mode != "RGB": |
|
logger.info(f"convert image to RGB from {image.mode}: {p}") |
|
image = image.convert("RGB") |
|
images.append(image) |
|
|
|
return images |
|
|
|
def resize_images(imgs, size): |
|
resized = [] |
|
for img in imgs: |
|
r_img = img.resize(size, Image.Resampling.LANCZOS) |
|
if hasattr(img, "filename"): |
|
r_img.filename = img.filename |
|
resized.append(r_img) |
|
return resized |
|
|
|
if args.image_path is not None: |
|
logger.info(f"load image for img2img: {args.image_path}") |
|
init_images = load_images(args.image_path) |
|
assert len(init_images) > 0, f"No image / 画像がありません: {args.image_path}" |
|
logger.info(f"loaded {len(init_images)} images for img2img") |
|
else: |
|
init_images = None |
|
|
|
if args.mask_path is not None: |
|
logger.info(f"load mask for inpainting: {args.mask_path}") |
|
mask_images = load_images(args.mask_path) |
|
assert len(mask_images) > 0, f"No mask image / マスク画像がありません: {args.image_path}" |
|
logger.info(f"loaded {len(mask_images)} mask images for inpainting") |
|
else: |
|
mask_images = None |
|
|
|
|
|
if init_images is not None and len(prompt_list) == 0 and not args.interactive: |
|
logger.info("get prompts from images' meta data") |
|
for img in init_images: |
|
if "prompt" in img.text: |
|
prompt = img.text["prompt"] |
|
if "negative-prompt" in img.text: |
|
prompt += " --n " + img.text["negative-prompt"] |
|
prompt_list.append(prompt) |
|
|
|
|
|
l = [] |
|
for im in init_images: |
|
l.extend([im] * args.images_per_prompt) |
|
init_images = l |
|
|
|
if mask_images is not None: |
|
l = [] |
|
for im in mask_images: |
|
l.extend([im] * args.images_per_prompt) |
|
mask_images = l |
|
|
|
|
|
if args.W is not None and args.H is not None: |
|
|
|
w, h = args.W, args.H |
|
if highres_fix: |
|
w = int(w * args.highres_fix_scale + 0.5) |
|
h = int(h * args.highres_fix_scale + 0.5) |
|
|
|
if init_images is not None: |
|
logger.info(f"resize img2img source images to {w}*{h}") |
|
init_images = resize_images(init_images, (w, h)) |
|
if mask_images is not None: |
|
logger.info(f"resize img2img mask images to {w}*{h}") |
|
mask_images = resize_images(mask_images, (w, h)) |
|
|
|
regional_network = False |
|
if networks and mask_images: |
|
|
|
regional_network = True |
|
logger.info("use mask as region") |
|
|
|
size = None |
|
for i, network in enumerate(networks): |
|
if (i < 3 and args.network_regional_mask_max_color_codes is None) or i < args.network_regional_mask_max_color_codes: |
|
np_mask = np.array(mask_images[0]) |
|
|
|
if args.network_regional_mask_max_color_codes: |
|
|
|
ch0 = (i + 1) & 1 |
|
ch1 = ((i + 1) >> 1) & 1 |
|
ch2 = ((i + 1) >> 2) & 1 |
|
np_mask = np.all(np_mask == np.array([ch0, ch1, ch2]) * 255, axis=2) |
|
np_mask = np_mask.astype(np.uint8) * 255 |
|
else: |
|
np_mask = np_mask[:, :, i] |
|
size = np_mask.shape |
|
else: |
|
np_mask = np.full(size, 255, dtype=np.uint8) |
|
mask = torch.from_numpy(np_mask.astype(np.float32) / 255.0) |
|
network.set_region(i, i == len(networks) - 1, mask) |
|
mask_images = None |
|
|
|
prev_image = None |
|
if args.guide_image_path is not None: |
|
logger.info(f"load image for CLIP/VGG16/ControlNet guidance: {args.guide_image_path}") |
|
guide_images = [] |
|
for p in args.guide_image_path: |
|
guide_images.extend(load_images(p)) |
|
|
|
logger.info(f"loaded {len(guide_images)} guide images for guidance") |
|
if len(guide_images) == 0: |
|
logger.info( |
|
f"No guide image, use previous generated image. / ガイド画像がありません。直前に生成した画像を使います: {args.image_path}" |
|
) |
|
guide_images = None |
|
else: |
|
guide_images = None |
|
|
|
|
|
if args.seed is not None: |
|
|
|
random.seed(args.seed) |
|
predefined_seeds = [random.randint(0, 0x7FFFFFFF) for _ in range(args.n_iter * len(prompt_list) * args.images_per_prompt)] |
|
if len(predefined_seeds) == 1: |
|
predefined_seeds[0] = args.seed |
|
else: |
|
predefined_seeds = None |
|
|
|
|
|
if args.W is None: |
|
args.W = 512 |
|
if args.H is None: |
|
args.H = 512 |
|
|
|
|
|
os.makedirs(args.outdir, exist_ok=True) |
|
max_embeddings_multiples = 1 if args.max_embeddings_multiples is None else args.max_embeddings_multiples |
|
|
|
for gen_iter in range(args.n_iter): |
|
logger.info(f"iteration {gen_iter+1}/{args.n_iter}") |
|
iter_seed = random.randint(0, 0x7FFFFFFF) |
|
|
|
|
|
if args.shuffle_prompts: |
|
random.shuffle(prompt_list) |
|
|
|
|
|
def process_batch(batch: List[BatchData], highres_fix, highres_1st=False): |
|
batch_size = len(batch) |
|
|
|
|
|
if highres_fix and not highres_1st: |
|
|
|
is_1st_latent = upscaler.support_latents() if upscaler else args.highres_fix_latents_upscaling |
|
|
|
logger.info("process 1st stage") |
|
batch_1st = [] |
|
for _, base, ext in batch: |
|
width_1st = int(ext.width * args.highres_fix_scale + 0.5) |
|
height_1st = int(ext.height * args.highres_fix_scale + 0.5) |
|
width_1st = width_1st - width_1st % 32 |
|
height_1st = height_1st - height_1st % 32 |
|
|
|
strength_1st = ext.strength if args.highres_fix_strength is None else args.highres_fix_strength |
|
|
|
ext_1st = BatchDataExt( |
|
width_1st, |
|
height_1st, |
|
args.highres_fix_steps, |
|
ext.scale, |
|
ext.negative_scale, |
|
strength_1st, |
|
ext.network_muls, |
|
ext.num_sub_prompts, |
|
) |
|
batch_1st.append(BatchData(is_1st_latent, base, ext_1st)) |
|
|
|
pipe.set_enable_control_net(True) |
|
images_1st = process_batch(batch_1st, True, True) |
|
|
|
|
|
logger.info("process 2nd stage") |
|
width_2nd, height_2nd = batch[0].ext.width, batch[0].ext.height |
|
|
|
if upscaler: |
|
|
|
lowreso_imgs = None if is_1st_latent else images_1st |
|
lowreso_latents = None if not is_1st_latent else images_1st |
|
|
|
|
|
batch_size = len(images_1st) |
|
vae_batch_size = ( |
|
batch_size |
|
if args.vae_batch_size is None |
|
else (max(1, int(batch_size * args.vae_batch_size)) if args.vae_batch_size < 1 else args.vae_batch_size) |
|
) |
|
vae_batch_size = int(vae_batch_size) |
|
images_1st = upscaler.upscale( |
|
vae, lowreso_imgs, lowreso_latents, dtype, width_2nd, height_2nd, batch_size, vae_batch_size |
|
) |
|
|
|
elif args.highres_fix_latents_upscaling: |
|
|
|
org_dtype = images_1st.dtype |
|
if images_1st.dtype == torch.bfloat16: |
|
images_1st = images_1st.to(torch.float) |
|
images_1st = torch.nn.functional.interpolate( |
|
images_1st, (batch[0].ext.height // 8, batch[0].ext.width // 8), mode="bilinear" |
|
) |
|
images_1st = images_1st.to(org_dtype) |
|
|
|
else: |
|
|
|
images_1st = [image.resize((width_2nd, height_2nd), resample=PIL.Image.LANCZOS) for image in images_1st] |
|
|
|
batch_2nd = [] |
|
for i, (bd, image) in enumerate(zip(batch, images_1st)): |
|
bd_2nd = BatchData(False, BatchDataBase(*bd.base[0:3], bd.base.seed + 1, image, None, *bd.base[6:]), bd.ext) |
|
batch_2nd.append(bd_2nd) |
|
batch = batch_2nd |
|
|
|
if args.highres_fix_disable_control_net: |
|
pipe.set_enable_control_net(False) |
|
|
|
|
|
( |
|
return_latents, |
|
(step_first, _, _, _, init_image, mask_image, _, guide_image, _), |
|
(width, height, steps, scale, negative_scale, strength, network_muls, num_sub_prompts), |
|
) = batch[0] |
|
noise_shape = (LATENT_CHANNELS, height // DOWNSAMPLING_FACTOR, width // DOWNSAMPLING_FACTOR) |
|
|
|
prompts = [] |
|
negative_prompts = [] |
|
raw_prompts = [] |
|
start_code = torch.zeros((batch_size, *noise_shape), device=device, dtype=dtype) |
|
noises = [ |
|
torch.zeros((batch_size, *noise_shape), device=device, dtype=dtype) |
|
for _ in range(steps * scheduler_num_noises_per_step) |
|
] |
|
seeds = [] |
|
clip_prompts = [] |
|
|
|
if init_image is not None: |
|
i2i_noises = torch.zeros((batch_size, *noise_shape), device=device, dtype=dtype) |
|
init_images = [] |
|
|
|
if mask_image is not None: |
|
mask_images = [] |
|
else: |
|
mask_images = None |
|
else: |
|
i2i_noises = None |
|
init_images = None |
|
mask_images = None |
|
|
|
if guide_image is not None: |
|
guide_images = [] |
|
else: |
|
guide_images = None |
|
|
|
|
|
all_images_are_same = True |
|
all_masks_are_same = True |
|
all_guide_images_are_same = True |
|
for i, ( |
|
_, |
|
(_, prompt, negative_prompt, seed, init_image, mask_image, clip_prompt, guide_image, raw_prompt), |
|
_, |
|
) in enumerate(batch): |
|
prompts.append(prompt) |
|
negative_prompts.append(negative_prompt) |
|
seeds.append(seed) |
|
clip_prompts.append(clip_prompt) |
|
raw_prompts.append(raw_prompt) |
|
|
|
if init_image is not None: |
|
init_images.append(init_image) |
|
if i > 0 and all_images_are_same: |
|
all_images_are_same = init_images[-2] is init_image |
|
|
|
if mask_image is not None: |
|
mask_images.append(mask_image) |
|
if i > 0 and all_masks_are_same: |
|
all_masks_are_same = mask_images[-2] is mask_image |
|
|
|
if guide_image is not None: |
|
if type(guide_image) is list: |
|
guide_images.extend(guide_image) |
|
all_guide_images_are_same = False |
|
else: |
|
guide_images.append(guide_image) |
|
if i > 0 and all_guide_images_are_same: |
|
all_guide_images_are_same = guide_images[-2] is guide_image |
|
|
|
|
|
torch.manual_seed(seed) |
|
start_code[i] = torch.randn(noise_shape, device=device, dtype=dtype) |
|
|
|
|
|
for j in range(steps * scheduler_num_noises_per_step): |
|
noises[j][i] = torch.randn(noise_shape, device=device, dtype=dtype) |
|
|
|
if i2i_noises is not None: |
|
i2i_noises[i] = torch.randn(noise_shape, device=device, dtype=dtype) |
|
|
|
noise_manager.reset_sampler_noises(noises) |
|
|
|
|
|
if init_images is not None and all_images_are_same: |
|
init_images = init_images[0] |
|
if mask_images is not None and all_masks_are_same: |
|
mask_images = mask_images[0] |
|
if guide_images is not None and all_guide_images_are_same: |
|
guide_images = guide_images[0] |
|
|
|
|
|
if control_nets: |
|
|
|
guide_images = guide_images if type(guide_images) == list else [guide_images] |
|
guide_images = [i.resize((width, height), resample=PIL.Image.LANCZOS) for i in guide_images] |
|
if len(guide_images) == 1: |
|
guide_images = guide_images[0] |
|
|
|
|
|
if networks: |
|
|
|
shared = {} |
|
for n, m in zip(networks, network_muls if network_muls else network_default_muls): |
|
n.set_multiplier(m) |
|
if regional_network: |
|
n.set_current_generation(batch_size, num_sub_prompts, width, height, shared) |
|
|
|
if not regional_network and network_pre_calc: |
|
for n in networks: |
|
n.restore_weights() |
|
for n in networks: |
|
n.pre_calculation() |
|
logger.info("pre-calculation... done") |
|
|
|
images = pipe( |
|
prompts, |
|
negative_prompts, |
|
init_images, |
|
mask_images, |
|
height, |
|
width, |
|
steps, |
|
scale, |
|
negative_scale, |
|
strength, |
|
latents=start_code, |
|
output_type="pil", |
|
max_embeddings_multiples=max_embeddings_multiples, |
|
img2img_noise=i2i_noises, |
|
vae_batch_size=args.vae_batch_size, |
|
return_latents=return_latents, |
|
clip_prompts=clip_prompts, |
|
clip_guide_images=guide_images, |
|
)[0] |
|
if highres_1st and not args.highres_fix_save_1st: |
|
return images |
|
|
|
|
|
highres_prefix = ("0" if highres_1st else "1") if highres_fix else "" |
|
ts_str = time.strftime("%Y%m%d%H%M%S", time.localtime()) |
|
for i, (image, prompt, negative_prompts, seed, clip_prompt, raw_prompt) in enumerate( |
|
zip(images, prompts, negative_prompts, seeds, clip_prompts, raw_prompts) |
|
): |
|
if highres_fix: |
|
seed -= 1 |
|
metadata = PngInfo() |
|
metadata.add_text("prompt", prompt) |
|
metadata.add_text("seed", str(seed)) |
|
metadata.add_text("sampler", args.sampler) |
|
metadata.add_text("steps", str(steps)) |
|
metadata.add_text("scale", str(scale)) |
|
if negative_prompt is not None: |
|
metadata.add_text("negative-prompt", negative_prompt) |
|
if negative_scale is not None: |
|
metadata.add_text("negative-scale", str(negative_scale)) |
|
if clip_prompt is not None: |
|
metadata.add_text("clip-prompt", clip_prompt) |
|
if raw_prompt is not None: |
|
metadata.add_text("raw-prompt", raw_prompt) |
|
|
|
if args.use_original_file_name and init_images is not None: |
|
if type(init_images) is list: |
|
fln = os.path.splitext(os.path.basename(init_images[i % len(init_images)].filename))[0] + ".png" |
|
else: |
|
fln = os.path.splitext(os.path.basename(init_images.filename))[0] + ".png" |
|
elif args.sequential_file_name: |
|
fln = f"im_{highres_prefix}{step_first + i + 1:06d}.png" |
|
else: |
|
fln = f"im_{ts_str}_{highres_prefix}{i:03d}_{seed}.png" |
|
|
|
image.save(os.path.join(args.outdir, fln), pnginfo=metadata) |
|
|
|
if not args.no_preview and not highres_1st and args.interactive: |
|
try: |
|
import cv2 |
|
|
|
for prompt, image in zip(prompts, images): |
|
cv2.imshow(prompt[:128], np.array(image)[:, :, ::-1]) |
|
cv2.waitKey() |
|
cv2.destroyAllWindows() |
|
except ImportError: |
|
logger.info( |
|
"opencv-python is not installed, cannot preview / opencv-pythonがインストールされていないためプレビューできません" |
|
) |
|
|
|
return images |
|
|
|
|
|
prompt_index = 0 |
|
global_step = 0 |
|
batch_data = [] |
|
while args.interactive or prompt_index < len(prompt_list): |
|
if len(prompt_list) == 0: |
|
|
|
valid = False |
|
while not valid: |
|
logger.info("") |
|
logger.info("Type prompt:") |
|
try: |
|
raw_prompt = input() |
|
except EOFError: |
|
break |
|
|
|
valid = len(raw_prompt.strip().split(" --")[0].strip()) > 0 |
|
if not valid: |
|
break |
|
else: |
|
raw_prompt = prompt_list[prompt_index] |
|
|
|
|
|
|
|
raw_prompts = handle_dynamic_prompt_variants(raw_prompt, args.images_per_prompt) |
|
|
|
|
|
for pi in range(args.images_per_prompt if len(raw_prompts) == 1 else len(raw_prompts)): |
|
raw_prompt = raw_prompts[pi] if len(raw_prompts) > 1 else raw_prompts[0] |
|
|
|
if pi == 0 or len(raw_prompts) > 1: |
|
|
|
width = args.W |
|
height = args.H |
|
scale = args.scale |
|
negative_scale = args.negative_scale |
|
steps = args.steps |
|
seed = None |
|
seeds = None |
|
strength = 0.8 if args.strength is None else args.strength |
|
negative_prompt = "" |
|
clip_prompt = None |
|
network_muls = None |
|
|
|
|
|
ds_depth_1 = None |
|
ds_timesteps_1 = args.ds_timesteps_1 |
|
ds_depth_2 = args.ds_depth_2 |
|
ds_timesteps_2 = args.ds_timesteps_2 |
|
ds_ratio = args.ds_ratio |
|
|
|
|
|
gl_timesteps = None |
|
gl_ratio = args.gradual_latent_ratio |
|
gl_every_n_steps = args.gradual_latent_every_n_steps |
|
gl_ratio_step = args.gradual_latent_ratio_step |
|
gl_s_noise = args.gradual_latent_s_noise |
|
gl_unsharp_params = args.gradual_latent_unsharp_params |
|
|
|
prompt_args = raw_prompt.strip().split(" --") |
|
prompt = prompt_args[0] |
|
logger.info(f"prompt {prompt_index+1}/{len(prompt_list)}: {prompt}") |
|
|
|
for parg in prompt_args[1:]: |
|
try: |
|
m = re.match(r"w (\d+)", parg, re.IGNORECASE) |
|
if m: |
|
width = int(m.group(1)) |
|
logger.info(f"width: {width}") |
|
continue |
|
|
|
m = re.match(r"h (\d+)", parg, re.IGNORECASE) |
|
if m: |
|
height = int(m.group(1)) |
|
logger.info(f"height: {height}") |
|
continue |
|
|
|
m = re.match(r"s (\d+)", parg, re.IGNORECASE) |
|
if m: |
|
steps = max(1, min(1000, int(m.group(1)))) |
|
logger.info(f"steps: {steps}") |
|
continue |
|
|
|
m = re.match(r"d ([\d,]+)", parg, re.IGNORECASE) |
|
if m: |
|
seeds = [int(d) for d in m.group(1).split(",")] |
|
logger.info(f"seeds: {seeds}") |
|
continue |
|
|
|
m = re.match(r"l ([\d\.]+)", parg, re.IGNORECASE) |
|
if m: |
|
scale = float(m.group(1)) |
|
logger.info(f"scale: {scale}") |
|
continue |
|
|
|
m = re.match(r"nl ([\d\.]+|none|None)", parg, re.IGNORECASE) |
|
if m: |
|
if m.group(1).lower() == "none": |
|
negative_scale = None |
|
else: |
|
negative_scale = float(m.group(1)) |
|
logger.info(f"negative scale: {negative_scale}") |
|
continue |
|
|
|
m = re.match(r"t ([\d\.]+)", parg, re.IGNORECASE) |
|
if m: |
|
strength = float(m.group(1)) |
|
logger.info(f"strength: {strength}") |
|
continue |
|
|
|
m = re.match(r"n (.+)", parg, re.IGNORECASE) |
|
if m: |
|
negative_prompt = m.group(1) |
|
logger.info(f"negative prompt: {negative_prompt}") |
|
continue |
|
|
|
m = re.match(r"c (.+)", parg, re.IGNORECASE) |
|
if m: |
|
clip_prompt = m.group(1) |
|
logger.info(f"clip prompt: {clip_prompt}") |
|
continue |
|
|
|
m = re.match(r"am ([\d\.\-,]+)", parg, re.IGNORECASE) |
|
if m: |
|
network_muls = [float(v) for v in m.group(1).split(",")] |
|
while len(network_muls) < len(networks): |
|
network_muls.append(network_muls[-1]) |
|
logger.info(f"network mul: {network_muls}") |
|
continue |
|
|
|
|
|
m = re.match(r"dsd1 ([\d\.]+)", parg, re.IGNORECASE) |
|
if m: |
|
ds_depth_1 = int(m.group(1)) |
|
logger.info(f"deep shrink depth 1: {ds_depth_1}") |
|
continue |
|
|
|
m = re.match(r"dst1 ([\d\.]+)", parg, re.IGNORECASE) |
|
if m: |
|
ds_timesteps_1 = int(m.group(1)) |
|
ds_depth_1 = ds_depth_1 if ds_depth_1 is not None else -1 |
|
logger.info(f"deep shrink timesteps 1: {ds_timesteps_1}") |
|
continue |
|
|
|
m = re.match(r"dsd2 ([\d\.]+)", parg, re.IGNORECASE) |
|
if m: |
|
ds_depth_2 = int(m.group(1)) |
|
ds_depth_1 = ds_depth_1 if ds_depth_1 is not None else -1 |
|
logger.info(f"deep shrink depth 2: {ds_depth_2}") |
|
continue |
|
|
|
m = re.match(r"dst2 ([\d\.]+)", parg, re.IGNORECASE) |
|
if m: |
|
ds_timesteps_2 = int(m.group(1)) |
|
ds_depth_1 = ds_depth_1 if ds_depth_1 is not None else -1 |
|
logger.info(f"deep shrink timesteps 2: {ds_timesteps_2}") |
|
continue |
|
|
|
m = re.match(r"dsr ([\d\.]+)", parg, re.IGNORECASE) |
|
if m: |
|
ds_ratio = float(m.group(1)) |
|
ds_depth_1 = ds_depth_1 if ds_depth_1 is not None else -1 |
|
logger.info(f"deep shrink ratio: {ds_ratio}") |
|
continue |
|
|
|
|
|
m = re.match(r"glt ([\d\.]+)", parg, re.IGNORECASE) |
|
if m: |
|
gl_timesteps = int(m.group(1)) |
|
logger.info(f"gradual latent timesteps: {gl_timesteps}") |
|
continue |
|
|
|
m = re.match(r"glr ([\d\.]+)", parg, re.IGNORECASE) |
|
if m: |
|
gl_ratio = float(m.group(1)) |
|
gl_timesteps = gl_timesteps if gl_timesteps is not None else -1 |
|
logger.info(f"gradual latent ratio: {ds_ratio}") |
|
continue |
|
|
|
m = re.match(r"gle ([\d\.]+)", parg, re.IGNORECASE) |
|
if m: |
|
gl_every_n_steps = int(m.group(1)) |
|
gl_timesteps = gl_timesteps if gl_timesteps is not None else -1 |
|
logger.info(f"gradual latent every n steps: {gl_every_n_steps}") |
|
continue |
|
|
|
m = re.match(r"gls ([\d\.]+)", parg, re.IGNORECASE) |
|
if m: |
|
gl_ratio_step = float(m.group(1)) |
|
gl_timesteps = gl_timesteps if gl_timesteps is not None else -1 |
|
logger.info(f"gradual latent ratio step: {gl_ratio_step}") |
|
continue |
|
|
|
m = re.match(r"glsn ([\d\.]+)", parg, re.IGNORECASE) |
|
if m: |
|
gl_s_noise = float(m.group(1)) |
|
gl_timesteps = gl_timesteps if gl_timesteps is not None else -1 |
|
logger.info(f"gradual latent s noise: {gl_s_noise}") |
|
continue |
|
|
|
m = re.match(r"glus ([\d\.\-,]+)", parg, re.IGNORECASE) |
|
if m: |
|
gl_unsharp_params = m.group(1) |
|
gl_timesteps = gl_timesteps if gl_timesteps is not None else -1 |
|
logger.info(f"gradual latent unsharp params: {gl_unsharp_params}") |
|
continue |
|
|
|
except ValueError as ex: |
|
logger.info(f"Exception in parsing / 解析エラー: {parg}") |
|
logger.info(ex) |
|
|
|
|
|
if ds_depth_1 is not None: |
|
if ds_depth_1 < 0: |
|
ds_depth_1 = args.ds_depth_1 or 3 |
|
unet.set_deep_shrink(ds_depth_1, ds_timesteps_1, ds_depth_2, ds_timesteps_2, ds_ratio) |
|
|
|
|
|
if gl_timesteps is not None: |
|
if gl_timesteps < 0: |
|
gl_timesteps = args.gradual_latent_timesteps or 650 |
|
if gl_unsharp_params is not None: |
|
unsharp_params = gl_unsharp_params.split(",") |
|
us_ksize, us_sigma, us_strength = [float(v) for v in unsharp_params[:3]] |
|
logger.info(f'{unsharp_params}') |
|
us_target_x = True if len(unsharp_params) < 4 else bool(int(unsharp_params[3])) |
|
us_ksize = int(us_ksize) |
|
else: |
|
us_ksize, us_sigma, us_strength, us_target_x = None, None, None, None |
|
gradual_latent = GradualLatent( |
|
gl_ratio, |
|
gl_timesteps, |
|
gl_every_n_steps, |
|
gl_ratio_step, |
|
gl_s_noise, |
|
us_ksize, |
|
us_sigma, |
|
us_strength, |
|
us_target_x, |
|
) |
|
pipe.set_gradual_latent(gradual_latent) |
|
|
|
|
|
if seeds is not None: |
|
|
|
if len(seeds) > 0: |
|
seed = seeds.pop(0) |
|
else: |
|
if predefined_seeds is not None: |
|
if len(predefined_seeds) > 0: |
|
seed = predefined_seeds.pop(0) |
|
else: |
|
logger.info("predefined seeds are exhausted") |
|
seed = None |
|
elif args.iter_same_seed: |
|
seed = iter_seed |
|
else: |
|
seed = None |
|
|
|
if seed is None: |
|
seed = random.randint(0, 0x7FFFFFFF) |
|
if args.interactive: |
|
logger.info(f"seed: {seed}") |
|
|
|
|
|
init_image = mask_image = guide_image = None |
|
|
|
|
|
if init_images is not None: |
|
init_image = init_images[global_step % len(init_images)] |
|
|
|
|
|
|
|
if not highres_fix: |
|
width, height = init_image.size |
|
width = width - width % 32 |
|
height = height - height % 32 |
|
if width != init_image.size[0] or height != init_image.size[1]: |
|
logger.info( |
|
f"img2img image size is not divisible by 32 so aspect ratio is changed / img2imgの画像サイズが32で割り切れないためリサイズされます。画像が歪みます" |
|
) |
|
|
|
if mask_images is not None: |
|
mask_image = mask_images[global_step % len(mask_images)] |
|
|
|
if guide_images is not None: |
|
if control_nets: |
|
c = len(control_nets) |
|
p = global_step % (len(guide_images) // c) |
|
guide_image = guide_images[p * c : p * c + c] |
|
else: |
|
guide_image = guide_images[global_step % len(guide_images)] |
|
elif args.clip_image_guidance_scale > 0 or args.vgg16_guidance_scale > 0: |
|
if prev_image is None: |
|
logger.info("Generate 1st image without guide image.") |
|
else: |
|
logger.info("Use previous image as guide image.") |
|
guide_image = prev_image |
|
|
|
if regional_network: |
|
num_sub_prompts = len(prompt.split(" AND ")) |
|
assert ( |
|
len(networks) <= num_sub_prompts |
|
), "Number of networks must be less than or equal to number of sub prompts." |
|
else: |
|
num_sub_prompts = None |
|
|
|
b1 = BatchData( |
|
False, |
|
BatchDataBase( |
|
global_step, prompt, negative_prompt, seed, init_image, mask_image, clip_prompt, guide_image, raw_prompt |
|
), |
|
BatchDataExt( |
|
width, |
|
height, |
|
steps, |
|
scale, |
|
negative_scale, |
|
strength, |
|
tuple(network_muls) if network_muls else None, |
|
num_sub_prompts, |
|
), |
|
) |
|
if len(batch_data) > 0 and batch_data[-1].ext != b1.ext: |
|
process_batch(batch_data, highres_fix) |
|
batch_data.clear() |
|
|
|
batch_data.append(b1) |
|
if len(batch_data) == args.batch_size: |
|
prev_image = process_batch(batch_data, highres_fix)[0] |
|
batch_data.clear() |
|
|
|
global_step += 1 |
|
|
|
prompt_index += 1 |
|
|
|
if len(batch_data) > 0: |
|
process_batch(batch_data, highres_fix) |
|
batch_data.clear() |
|
|
|
logger.info("done!") |
|
|
|
|
|
def setup_parser() -> argparse.ArgumentParser: |
|
parser = argparse.ArgumentParser() |
|
|
|
add_logging_arguments(parser) |
|
|
|
parser.add_argument( |
|
"--v2", action="store_true", help="load Stable Diffusion v2.0 model / Stable Diffusion 2.0のモデルを読み込む" |
|
) |
|
parser.add_argument( |
|
"--v_parameterization", action="store_true", help="enable v-parameterization training / v-parameterization学習を有効にする" |
|
) |
|
parser.add_argument("--prompt", type=str, default=None, help="prompt / プロンプト") |
|
parser.add_argument( |
|
"--from_file", |
|
type=str, |
|
default=None, |
|
help="if specified, load prompts from this file / 指定時はプロンプトをファイルから読み込む", |
|
) |
|
parser.add_argument( |
|
"--interactive", |
|
action="store_true", |
|
help="interactive mode (generates one image) / 対話モード(生成される画像は1枚になります)", |
|
) |
|
parser.add_argument( |
|
"--no_preview", action="store_true", help="do not show generated image in interactive mode / 対話モードで画像を表示しない" |
|
) |
|
parser.add_argument( |
|
"--image_path", type=str, default=None, help="image to inpaint or to generate from / img2imgまたはinpaintを行う元画像" |
|
) |
|
parser.add_argument("--mask_path", type=str, default=None, help="mask in inpainting / inpaint時のマスク") |
|
parser.add_argument("--strength", type=float, default=None, help="img2img strength / img2img時のstrength") |
|
parser.add_argument("--images_per_prompt", type=int, default=1, help="number of images per prompt / プロンプトあたりの出力枚数") |
|
parser.add_argument("--outdir", type=str, default="outputs", help="dir to write results to / 生成画像の出力先") |
|
parser.add_argument( |
|
"--sequential_file_name", action="store_true", help="sequential output file name / 生成画像のファイル名を連番にする" |
|
) |
|
parser.add_argument( |
|
"--use_original_file_name", |
|
action="store_true", |
|
help="prepend original file name in img2img / img2imgで元画像のファイル名を生成画像のファイル名の先頭に付ける", |
|
) |
|
|
|
parser.add_argument("--n_iter", type=int, default=1, help="sample this often / 繰り返し回数") |
|
parser.add_argument("--H", type=int, default=None, help="image height, in pixel space / 生成画像高さ") |
|
parser.add_argument("--W", type=int, default=None, help="image width, in pixel space / 生成画像幅") |
|
parser.add_argument("--batch_size", type=int, default=1, help="batch size / バッチサイズ") |
|
parser.add_argument( |
|
"--vae_batch_size", |
|
type=float, |
|
default=None, |
|
help="batch size for VAE, < 1.0 for ratio / VAE処理時のバッチサイズ、1未満の値の場合は通常バッチサイズの比率", |
|
) |
|
parser.add_argument( |
|
"--vae_slices", |
|
type=int, |
|
default=None, |
|
help="number of slices to split image into for VAE to reduce VRAM usage, None for no splitting (default), slower if specified. 16 or 32 recommended / VAE処理時にVRAM使用量削減のため画像を分割するスライス数、Noneの場合は分割しない(デフォルト)、指定すると遅くなる。16か32程度を推奨", |
|
) |
|
parser.add_argument("--steps", type=int, default=50, help="number of ddim sampling steps / サンプリングステップ数") |
|
parser.add_argument( |
|
"--sampler", |
|
type=str, |
|
default="ddim", |
|
choices=[ |
|
"ddim", |
|
"pndm", |
|
"lms", |
|
"euler", |
|
"euler_a", |
|
"heun", |
|
"dpm_2", |
|
"dpm_2_a", |
|
"dpmsolver", |
|
"dpmsolver++", |
|
"dpmsingle", |
|
"k_lms", |
|
"k_euler", |
|
"k_euler_a", |
|
"k_dpm_2", |
|
"k_dpm_2_a", |
|
], |
|
help=f"sampler (scheduler) type / サンプラー(スケジューラ)の種類", |
|
) |
|
parser.add_argument( |
|
"--scale", |
|
type=float, |
|
default=7.5, |
|
help="unconditional guidance scale: eps = eps(x, empty) + scale * (eps(x, cond) - eps(x, empty)) / guidance scale", |
|
) |
|
parser.add_argument( |
|
"--ckpt", type=str, default=None, help="path to checkpoint of model / モデルのcheckpointファイルまたはディレクトリ" |
|
) |
|
parser.add_argument( |
|
"--vae", |
|
type=str, |
|
default=None, |
|
help="path to checkpoint of vae to replace / VAEを入れ替える場合、VAEのcheckpointファイルまたはディレクトリ", |
|
) |
|
parser.add_argument( |
|
"--tokenizer_cache_dir", |
|
type=str, |
|
default=None, |
|
help="directory for caching Tokenizer (for offline training) / Tokenizerをキャッシュするディレクトリ(ネット接続なしでの学習のため)", |
|
) |
|
|
|
|
|
parser.add_argument( |
|
"--seed", |
|
type=int, |
|
default=None, |
|
help="seed, or seed of seeds in multiple generation / 1枚生成時のseed、または複数枚生成時の乱数seedを決めるためのseed", |
|
) |
|
parser.add_argument( |
|
"--iter_same_seed", |
|
action="store_true", |
|
help="use same seed for all prompts in iteration if no seed specified / 乱数seedの指定がないとき繰り返し内はすべて同じseedを使う(プロンプト間の差異の比較用)", |
|
) |
|
parser.add_argument( |
|
"--shuffle_prompts", |
|
action="store_true", |
|
help="shuffle prompts in iteration / 繰り返し内のプロンプトをシャッフルする", |
|
) |
|
parser.add_argument("--fp16", action="store_true", help="use fp16 / fp16を指定し省メモリ化する") |
|
parser.add_argument("--bf16", action="store_true", help="use bfloat16 / bfloat16を指定し省メモリ化する") |
|
parser.add_argument("--xformers", action="store_true", help="use xformers / xformersを使用し高速化する") |
|
parser.add_argument("--sdpa", action="store_true", help="use sdpa in PyTorch 2 / sdpa") |
|
parser.add_argument( |
|
"--diffusers_xformers", |
|
action="store_true", |
|
help="use xformers by diffusers (Hypernetworks doesn't work) / Diffusersでxformersを使用する(Hypernetwork利用不可)", |
|
) |
|
parser.add_argument( |
|
"--opt_channels_last", |
|
action="store_true", |
|
help="set channels last option to model / モデルにchannels lastを指定し最適化する", |
|
) |
|
parser.add_argument( |
|
"--network_module", |
|
type=str, |
|
default=None, |
|
nargs="*", |
|
help="additional network module to use / 追加ネットワークを使う時そのモジュール名", |
|
) |
|
parser.add_argument( |
|
"--network_weights", type=str, default=None, nargs="*", help="additional network weights to load / 追加ネットワークの重み" |
|
) |
|
parser.add_argument( |
|
"--network_mul", type=float, default=None, nargs="*", help="additional network multiplier / 追加ネットワークの効果の倍率" |
|
) |
|
parser.add_argument( |
|
"--network_args", |
|
type=str, |
|
default=None, |
|
nargs="*", |
|
help="additional arguments for network (key=value) / ネットワークへの追加の引数", |
|
) |
|
parser.add_argument( |
|
"--network_show_meta", action="store_true", help="show metadata of network model / ネットワークモデルのメタデータを表示する" |
|
) |
|
parser.add_argument( |
|
"--network_merge_n_models", |
|
type=int, |
|
default=None, |
|
help="merge this number of networks / この数だけネットワークをマージする", |
|
) |
|
parser.add_argument( |
|
"--network_merge", action="store_true", help="merge network weights to original model / ネットワークの重みをマージする" |
|
) |
|
parser.add_argument( |
|
"--network_pre_calc", |
|
action="store_true", |
|
help="pre-calculate network for generation / ネットワークのあらかじめ計算して生成する", |
|
) |
|
parser.add_argument( |
|
"--network_regional_mask_max_color_codes", |
|
type=int, |
|
default=None, |
|
help="max color codes for regional mask (default is None, mask by channel) / regional maskの最大色数(デフォルトはNoneでチャンネルごとのマスク)", |
|
) |
|
parser.add_argument( |
|
"--textual_inversion_embeddings", |
|
type=str, |
|
default=None, |
|
nargs="*", |
|
help="Embeddings files of Textual Inversion / Textual Inversionのembeddings", |
|
) |
|
parser.add_argument( |
|
"--XTI_embeddings", |
|
type=str, |
|
default=None, |
|
nargs="*", |
|
help="Embeddings files of Extended Textual Inversion / Extended Textual Inversionのembeddings", |
|
) |
|
parser.add_argument( |
|
"--clip_skip", type=int, default=None, help="layer number from bottom to use in CLIP / CLIPの後ろからn層目の出力を使う" |
|
) |
|
parser.add_argument( |
|
"--max_embeddings_multiples", |
|
type=int, |
|
default=None, |
|
help="max embedding multiples, max token length is 75 * multiples / トークン長をデフォルトの何倍とするか 75*この値 がトークン長となる", |
|
) |
|
parser.add_argument( |
|
"--clip_guidance_scale", |
|
type=float, |
|
default=0.0, |
|
help="enable CLIP guided SD, scale for guidance (DDIM, PNDM, LMS samplers only) / CLIP guided SDを有効にしてこのscaleを適用する(サンプラーはDDIM、PNDM、LMSのみ)", |
|
) |
|
parser.add_argument( |
|
"--clip_image_guidance_scale", |
|
type=float, |
|
default=0.0, |
|
help="enable CLIP guided SD by image, scale for guidance / 画像によるCLIP guided SDを有効にしてこのscaleを適用する", |
|
) |
|
parser.add_argument( |
|
"--vgg16_guidance_scale", |
|
type=float, |
|
default=0.0, |
|
help="enable VGG16 guided SD by image, scale for guidance / 画像によるVGG16 guided SDを有効にしてこのscaleを適用する", |
|
) |
|
parser.add_argument( |
|
"--vgg16_guidance_layer", |
|
type=int, |
|
default=20, |
|
help="layer of VGG16 to calculate contents guide (1~30, 20 for conv4_2) / VGG16のcontents guideに使うレイヤー番号 (1~30、20はconv4_2)", |
|
) |
|
parser.add_argument( |
|
"--guide_image_path", type=str, default=None, nargs="*", help="image to CLIP guidance / CLIP guided SDでガイドに使う画像" |
|
) |
|
parser.add_argument( |
|
"--highres_fix_scale", |
|
type=float, |
|
default=None, |
|
help="enable highres fix, reso scale for 1st stage / highres fixを有効にして最初の解像度をこのscaleにする", |
|
) |
|
parser.add_argument( |
|
"--highres_fix_steps", |
|
type=int, |
|
default=28, |
|
help="1st stage steps for highres fix / highres fixの最初のステージのステップ数", |
|
) |
|
parser.add_argument( |
|
"--highres_fix_strength", |
|
type=float, |
|
default=None, |
|
help="1st stage img2img strength for highres fix / highres fixの最初のステージのimg2img時のstrength、省略時はstrengthと同じ", |
|
) |
|
parser.add_argument( |
|
"--highres_fix_save_1st", |
|
action="store_true", |
|
help="save 1st stage images for highres fix / highres fixの最初のステージの画像を保存する", |
|
) |
|
parser.add_argument( |
|
"--highres_fix_latents_upscaling", |
|
action="store_true", |
|
help="use latents upscaling for highres fix / highres fixでlatentで拡大する", |
|
) |
|
parser.add_argument( |
|
"--highres_fix_upscaler", |
|
type=str, |
|
default=None, |
|
help="upscaler module for highres fix / highres fixで使うupscalerのモジュール名", |
|
) |
|
parser.add_argument( |
|
"--highres_fix_upscaler_args", |
|
type=str, |
|
default=None, |
|
help="additional arguments for upscaler (key=value) / upscalerへの追加の引数", |
|
) |
|
parser.add_argument( |
|
"--highres_fix_disable_control_net", |
|
action="store_true", |
|
help="disable ControlNet for highres fix / highres fixでControlNetを使わない", |
|
) |
|
|
|
parser.add_argument( |
|
"--negative_scale", |
|
type=float, |
|
default=None, |
|
help="set another guidance scale for negative prompt / ネガティブプロンプトのscaleを指定する", |
|
) |
|
|
|
parser.add_argument( |
|
"--control_net_models", type=str, default=None, nargs="*", help="ControlNet models to use / 使用するControlNetのモデル名" |
|
) |
|
parser.add_argument( |
|
"--control_net_preps", |
|
type=str, |
|
default=None, |
|
nargs="*", |
|
help="ControlNet preprocess to use / 使用するControlNetのプリプロセス名", |
|
) |
|
parser.add_argument("--control_net_weights", type=float, default=None, nargs="*", help="ControlNet weights / ControlNetの重み") |
|
parser.add_argument( |
|
"--control_net_ratios", |
|
type=float, |
|
default=None, |
|
nargs="*", |
|
help="ControlNet guidance ratio for steps / ControlNetでガイドするステップ比率", |
|
) |
|
|
|
|
|
|
|
|
|
|
|
parser.add_argument( |
|
"--ds_depth_1", |
|
type=int, |
|
default=None, |
|
help="Enable Deep Shrink with this depth 1, valid values are 0 to 3 / Deep Shrinkをこのdepthで有効にする", |
|
) |
|
parser.add_argument( |
|
"--ds_timesteps_1", |
|
type=int, |
|
default=650, |
|
help="Apply Deep Shrink depth 1 until this timesteps / Deep Shrink depth 1を適用するtimesteps", |
|
) |
|
parser.add_argument("--ds_depth_2", type=int, default=None, help="Deep Shrink depth 2 / Deep Shrinkのdepth 2") |
|
parser.add_argument( |
|
"--ds_timesteps_2", |
|
type=int, |
|
default=650, |
|
help="Apply Deep Shrink depth 2 until this timesteps / Deep Shrink depth 2を適用するtimesteps", |
|
) |
|
parser.add_argument( |
|
"--ds_ratio", type=float, default=0.5, help="Deep Shrink ratio for downsampling / Deep Shrinkのdownsampling比率" |
|
) |
|
|
|
|
|
parser.add_argument( |
|
"--gradual_latent_timesteps", |
|
type=int, |
|
default=None, |
|
help="enable Gradual Latent hires fix and apply upscaling from this timesteps / Gradual Latent hires fixをこのtimestepsで有効にし、このtimestepsからアップスケーリングを適用する", |
|
) |
|
parser.add_argument( |
|
"--gradual_latent_ratio", |
|
type=float, |
|
default=0.5, |
|
help=" this size ratio, 0.5 means 1/2 / Gradual Latent hires fixをこのサイズ比率で有効にする、0.5は1/2を意味する", |
|
) |
|
parser.add_argument( |
|
"--gradual_latent_ratio_step", |
|
type=float, |
|
default=0.125, |
|
help="step to increase ratio for Gradual Latent / Gradual Latentのratioをどのくらいずつ上げるか", |
|
) |
|
parser.add_argument( |
|
"--gradual_latent_every_n_steps", |
|
type=int, |
|
default=3, |
|
help="steps to increase size of latents every this steps for Gradual Latent / Gradual Latentでlatentsのサイズをこのステップごとに上げる", |
|
) |
|
parser.add_argument( |
|
"--gradual_latent_s_noise", |
|
type=float, |
|
default=1.0, |
|
help="s_noise for Gradual Latent / Gradual Latentのs_noise", |
|
) |
|
parser.add_argument( |
|
"--gradual_latent_unsharp_params", |
|
type=str, |
|
default=None, |
|
help="unsharp mask parameters for Gradual Latent: ksize, sigma, strength, target-x (1 means True). `3,0.5,0.5,1` or `3,1.0,1.0,0` is recommended /" |
|
+ " Gradual Latentのunsharp maskのパラメータ: ksize, sigma, strength, target-x. `3,0.5,0.5,1` または `3,1.0,1.0,0` が推奨", |
|
) |
|
|
|
return parser |
|
|
|
|
|
if __name__ == "__main__": |
|
parser = setup_parser() |
|
|
|
args = parser.parse_args() |
|
setup_logging(args, reset=True) |
|
main(args) |
|
|