app.py

import os
import sys
# sys.path.append(os.path.abspath(os.path.dirname(os.getcwd())))
# os.chdir("../")
import gradio as gr
import numpy as np
from pathlib import Path
from matplotlib import pyplot as plt
import torch
import tempfile
from lama_inpaint import inpaint_img_with_lama, build_lama_model, inpaint_img_with_builded_lama
from utils import load_img_to_array, save_array_to_img, dilate_mask, \
    show_mask, show_points
from PIL import Image
sys.path.insert(0, str(Path(__file__).resolve().parent / "third_party" / "segment-anything"))
from segment_anything import SamPredictor, sam_model_registry
import argparse

def setup_args(parser):
    parser.add_argument(
        "--lama_config", type=str,
        default="./third_party/lama/configs/prediction/default.yaml",
        help="The path to the config file of lama model. "
             "Default: the config of big-lama",
    )
    parser.add_argument(
        "--lama_ckpt", type=str,
        default="pretrained_models/big-lama",
        help="The path to the lama checkpoint.",
    )
    parser.add_argument(
        "--sam_ckpt", type=str,
        default="./pretrained_models/sam_vit_h_4b8939.pth",
        help="The path to the SAM checkpoint to use for mask generation.",
    )
def mkstemp(suffix, dir=None):
    fd, path = tempfile.mkstemp(suffix=f"{suffix}", dir=dir)
    os.close(fd)
    return Path(path)


def get_sam_feat(img):
    model['sam'].set_image(img)
    features = model['sam'].features 
    orig_h = model['sam'].orig_h 
    orig_w = model['sam'].orig_w 
    input_h = model['sam'].input_h 
    input_w = model['sam'].input_w 
    model['sam'].reset_image()
    return features, orig_h, orig_w, input_h, input_w

 
def get_masked_img(img, w, h, features, orig_h, orig_w, input_h, input_w, dilate_kernel_size):
    point_coords = [w, h]
    point_labels = [1]

    model['sam'].is_image_set = True
    model['sam'].features = features
    model['sam'].orig_h = orig_h
    model['sam'].orig_w = orig_w
    model['sam'].input_h = input_h
    model['sam'].input_w = input_w

    # model['sam'].set_image(img) # todo : update here for accelerating
    masks, _, _ = model['sam'].predict(
        point_coords=np.array([point_coords]),
        point_labels=np.array(point_labels),
        multimask_output=True,
    )

    masks = masks.astype(np.uint8) * 255

    # dilate mask to avoid unmasked edge effect
    if dilate_kernel_size is not None:
        masks = [dilate_mask(mask, dilate_kernel_size) for mask in masks]
    else:
        masks = [mask for mask in masks]

    figs = []
    for idx, mask in enumerate(masks):
        # save the pointed and masked image
        tmp_p = mkstemp(".png")
        dpi = plt.rcParams['figure.dpi']
        height, width = img.shape[:2]
        fig = plt.figure(figsize=(width/dpi/0.77, height/dpi/0.77))
        plt.imshow(img)
        plt.axis('off')
        show_points(plt.gca(), [point_coords], point_labels,
                    size=(width*0.04)**2)
        show_mask(plt.gca(), mask, random_color=False)
        plt.tight_layout()
        plt.savefig(tmp_p, bbox_inches='tight', pad_inches=0)
        figs.append(fig)
        plt.close()
    return *figs, *masks


def get_inpainted_img(img, mask0, mask1, mask2):
    lama_config = args.lama_config
    device = "cuda" if torch.cuda.is_available() else "cpu"
    out = []
    for mask in [mask0, mask1, mask2]:
        if len(mask.shape)==3:
            mask = mask[:,:,0]
        img_inpainted = inpaint_img_with_builded_lama(
            model['lama'], img, mask, lama_config, device=device)
        out.append(img_inpainted)
    return out


# get args 
parser = argparse.ArgumentParser()
setup_args(parser)
args = parser.parse_args(sys.argv[1:])
# build models
model = {}
# build the sam model
model_type="vit_h"
ckpt_p=args.sam_ckpt
model_sam = sam_model_registry[model_type](checkpoint=ckpt_p)
device = "cuda" if torch.cuda.is_available() else "cpu"
model_sam.to(device=device)
model['sam'] = SamPredictor(model_sam)

# build the lama model
lama_config = args.lama_config
lama_ckpt = args.lama_ckpt
device = "cuda" if torch.cuda.is_available() else "cpu"
model['lama'] = build_lama_model(lama_config, lama_ckpt, device=device)

button_size = (100,50)
with gr.Blocks() as demo:
    features = gr.State(None)
    orig_h = gr.State(None)
    orig_w = gr.State(None)
    input_h = gr.State(None)
    input_w = gr.State(None)

    with gr.Row().style(mobile_collapse=False, equal_height=True):
        with gr.Column(variant="panel"):
            with gr.Row():
                gr.Markdown("## Input Image")
            with gr.Row():
                img = gr.Image(label="Input Image").style(height="200px")
        with gr.Column(variant="panel"):
            with gr.Row():
                gr.Markdown("## Pointed Image")
            with gr.Row():
                img_pointed = gr.Plot(label='Pointed Image')
        with gr.Column(variant="panel"):
            with gr.Row():
                gr.Markdown("## Control Panel")
            with gr.Row():
                w = gr.Number(label="Point Coordinate W")
                h = gr.Number(label="Point Coordinate H")
            dilate_kernel_size = gr.Slider(label="Dilate Kernel Size", minimum=0, maximum=100, step=1, value=15)
            sam_mask = gr.Button("Predict Mask", variant="primary").style(full_width=True, size="sm")
            lama = gr.Button("Inpaint Image", variant="primary").style(full_width=True, size="sm")
            clear_button_image = gr.Button(value="Reset", label="Reset", variant="secondary").style(full_width=True, size="sm")

    # todo: maybe we can delete this row, for it's unnecessary to show the original mask for customers
    with gr.Row(variant="panel"):
        with gr.Column():
            with gr.Row():
                gr.Markdown("## Segmentation Mask")
            with gr.Row():
                mask_0 = gr.outputs.Image(type="numpy", label="Segmentation Mask 0").style(height="200px")
                mask_1 = gr.outputs.Image(type="numpy", label="Segmentation Mask 1").style(height="200px")
                mask_2 = gr.outputs.Image(type="numpy", label="Segmentation Mask 2").style(height="200px")

    with gr.Row(variant="panel"):
        with gr.Column():
            with gr.Row():
                gr.Markdown("## Image with Mask")
            with gr.Row():
                img_with_mask_0 = gr.Plot(label="Image with Segmentation Mask 0")
                img_with_mask_1 = gr.Plot(label="Image with Segmentation Mask 1")
                img_with_mask_2 = gr.Plot(label="Image with Segmentation Mask 2")

    with gr.Row(variant="panel"):
        with gr.Column():
            with gr.Row():
                gr.Markdown("## Image Removed with Mask")
            with gr.Row():
                img_rm_with_mask_0 = gr.outputs.Image(
                    type="numpy", label="Image Removed with Segmentation Mask 0").style(height="200px")
                img_rm_with_mask_1 = gr.outputs.Image(
                    type="numpy", label="Image Removed with Segmentation Mask 1").style(height="200px")
                img_rm_with_mask_2 = gr.outputs.Image(
                    type="numpy", label="Image Removed with Segmentation Mask 2").style(height="200px")


    def get_select_coords(img, evt: gr.SelectData):
        dpi = plt.rcParams['figure.dpi']
        height, width = img.shape[:2]
        fig = plt.figure(figsize=(width/dpi/0.77, height/dpi/0.77))
        plt.imshow(img)
        plt.axis('off')
        plt.tight_layout()
        show_points(plt.gca(), [[evt.index[0], evt.index[1]]], [1],
                    size=(width*0.04)**2)
        return evt.index[0], evt.index[1], fig

    img.select(get_select_coords, [img], [w, h, img_pointed])
    img.upload(get_sam_feat, [img], [features, orig_h, orig_w, input_h, input_w])

    sam_mask.click(
        get_masked_img,
        [img, w, h, features, orig_h, orig_w, input_h, input_w, dilate_kernel_size],
        [img_with_mask_0, img_with_mask_1, img_with_mask_2, mask_0, mask_1, mask_2]
    )

    lama.click(
        get_inpainted_img,
        [img, mask_0, mask_1, mask_2],
        [img_rm_with_mask_0, img_rm_with_mask_1, img_rm_with_mask_2]
    )


    def reset(*args):
        return [None for _ in args]

    clear_button_image.click(
        reset,
        [img, features, img_pointed, w, h, mask_0, mask_1, mask_2, img_with_mask_0, img_with_mask_1, img_with_mask_2, img_rm_with_mask_0, img_rm_with_mask_1, img_rm_with_mask_2],
        [img, features, img_pointed, w, h, mask_0, mask_1, mask_2, img_with_mask_0, img_with_mask_1, img_with_mask_2, img_rm_with_mask_0, img_rm_with_mask_1, img_rm_with_mask_2]
    )

if __name__ == "__main__":
    demo.launch()