app.py

import sys
sys.path.append('./')
from PIL import Image
try:
    import cv2
    print("OpenCV is installed correctly.")
except ImportError:
    print("OpenCV is not installed.")
import gradio as gr
from src.tryon_pipeline import StableDiffusionXLInpaintPipeline as TryonPipeline
from src.unet_hacked_garmnet import UNet2DConditionModel as UNet2DConditionModel_ref
from src.unet_hacked_tryon import UNet2DConditionModel
from transformers import (
    CLIPImageProcessor,
    CLIPVisionModelWithProjection,
    CLIPTextModel,
    CLIPTextModelWithProjection,
)
from diffusers import DDPMScheduler,AutoencoderKL
from typing import List

import torch
import os
from transformers import AutoTokenizer
import numpy as np
from utils_mask import get_mask_location
from torchvision import transforms
import apply_net
from preprocess.humanparsing.run_parsing import Parsing
from preprocess.openpose.run_openpose import OpenPose
from detectron2.data.detection_utils import convert_PIL_to_numpy,_apply_exif_orientation
from torchvision.transforms.functional import to_pil_image

device = 'cuda:0' if torch.cuda.is_available() else 'cpu'

def pil_to_binary_mask(pil_image, threshold=0):
    np_image = np.array(pil_image)
    grayscale_image = Image.fromarray(np_image).convert("L")
    binary_mask = np.array(grayscale_image) > threshold
    mask = np.zeros(binary_mask.shape, dtype=np.uint8)
    for i in range(binary_mask.shape[0]):
        for j in range(binary_mask.shape[1]):
            if binary_mask[i,j] == True :
                mask[i,j] = 1
    mask = (mask*255).astype(np.uint8)
    output_mask = Image.fromarray(mask)
    return output_mask


base_path = 'yisol/IDM-VTON'
example_path = os.path.join(os.path.dirname(__file__), 'example')

unet = UNet2DConditionModel.from_pretrained(
    base_path,
    subfolder="unet",
    torch_dtype=torch.float16,
)
unet.requires_grad_(False)
tokenizer_one = AutoTokenizer.from_pretrained(
    base_path,
    subfolder="tokenizer",
    revision=None,
    use_fast=False,
)
tokenizer_two = AutoTokenizer.from_pretrained(
    base_path,
    subfolder="tokenizer_2",
    revision=None,
    use_fast=False,
)
noise_scheduler = DDPMScheduler.from_pretrained(base_path, subfolder="scheduler")

text_encoder_one = CLIPTextModel.from_pretrained(
    base_path,
    subfolder="text_encoder",
    torch_dtype=torch.float16,
)
text_encoder_two = CLIPTextModelWithProjection.from_pretrained(
    base_path,
    subfolder="text_encoder_2",
    torch_dtype=torch.float16,
)
image_encoder = CLIPVisionModelWithProjection.from_pretrained(
    base_path,
    subfolder="image_encoder",
    torch_dtype=torch.float16,
    )
vae = AutoencoderKL.from_pretrained(base_path,
                                    subfolder="vae",
                                    torch_dtype=torch.float16,
)

# "stabilityai/stable-diffusion-xl-base-1.0",
UNet_Encoder = UNet2DConditionModel_ref.from_pretrained(
    base_path,
    subfolder="unet_encoder",
    torch_dtype=torch.float16,
)

parsing_model = Parsing(0)
openpose_model = OpenPose(0)

UNet_Encoder.requires_grad_(False)
image_encoder.requires_grad_(False)
vae.requires_grad_(False)
unet.requires_grad_(False)
text_encoder_one.requires_grad_(False)
text_encoder_two.requires_grad_(False)
tensor_transfrom = transforms.Compose(
            [
                transforms.ToTensor(),
                transforms.Normalize([0.5], [0.5]),
            ]
    )

pipe = TryonPipeline.from_pretrained(
        base_path,
        unet=unet,
        vae=vae,
        feature_extractor= CLIPImageProcessor(),
        text_encoder = text_encoder_one,
        text_encoder_2 = text_encoder_two,
        tokenizer = tokenizer_one,
        tokenizer_2 = tokenizer_two,
        scheduler = noise_scheduler,
        image_encoder=image_encoder,
        torch_dtype=torch.float16,
)
pipe.unet_encoder = UNet_Encoder

# Function to visualize parsing
def visualize_parsing(image, mask):
    """
    Visualize the parsing by applying a color map to the segmentation mask.
    """
    # Ensure image is in RGB format and convert to numpy array
    image_array = np.array(image.convert('RGB'), dtype=np.uint8)

    # Create a color map
    num_classes = np.max(mask) + 1
    colors = np.random.randint(0, 255, size=(num_classes, 3), dtype=np.uint8)
    
    # Apply color map to the mask
    color_mask = colors[mask.astype(int)]

    # Ensure color_mask is correctly shaped and typed
    color_mask = np.array(color_mask, dtype=np.uint8)

    # Combine the original image and the color mask
    combined_image = cv2.addWeighted(image_array, 0.5, color_mask, 0.5, 0)

    return Image.fromarray(combined_image)

def process_densepose(human_img):
    """
    Processes the human image using DensePose and returns the DensePose image.
    Assumes human_img is a dictionary with a 'background' key pointing to the image path.
    """
    # Load image from path
    image_path = human_img['background']  # Assuming 'background' is the correct key
    if isinstance(image_path, Image.Image):
        image = image_path
    else:
        image = Image.open(image_path)  # Only call Image.open if it's not already an Image object

    # Apply EXIF orientation and resize
    human_img_arg = _apply_exif_orientation(image.resize((384, 512)))
    human_img_arg = convert_PIL_to_numpy(human_img_arg, format="BGR")

    # Setup DensePose arguments
    args = apply_net.create_argument_parser().parse_args(
        ('show', './configs/densepose_rcnn_R_50_FPN_s1x.yaml', './ckpt/densepose/model_final_162be9.pkl', 'dp_segm', '-v', '--opts', 'MODEL.DEVICE', 'cuda')
    )
    pose_img = args.func(args, human_img_arg)
    pose_img = pose_img[:, :, ::-1]  # Convert from BGR to RGB
    pose_img = Image.fromarray(pose_img).resize((768, 1024))

    return pose_img, pose_img

def process_human_parsing(human_img):
    """
    Processes the human image to perform segmentation using a human parsing model.
    """
    
    image_path = human_img['background']  # Assuming 'background' is the correct key
    if isinstance(image_path, Image.Image):
        image = image_path
    else:
        image = Image.open(image_path)  # Only call Image.open if it's not already an Image object

    image = image.resize((384, 512))
    model_parse, _ = parsing_model(image)
    # parsing_image = visualize_parsing(human_img, model_parse)  # Visualization function needed
    # vis_image = visualize_parsing(image, model_parse)
    # state_message = "Human parsing processing completed"
    return model_parse

def start_tryon(dict, garm_img, garment_des, is_checked, is_checked_crop, denoise_steps, seed):
    """
    Preprocesses images and generates outputs using various models.
    
    Parameters:
    - human_img: PIL image of the human.
    - garm_img: PIL image of the garment.
    - garment_des: Description of the garment.
    - is_checked: Boolean flag indicating whether to use auto-generated mask.
    - is_checked_crop: Boolean flag indicating whether to use auto-crop & resizing.
    - denoise_steps: Number of denoising steps.
    - seed: Seed for random generator.
    - pose_img: DensePose image generated in the previous step.

    Returns:
    - Processed images: Depending on the conditions, it returns human_img_orig, mask_gray, and final output images.
    """
    openpose_model.preprocessor.body_estimation.model.to(device)
    pipe.to(device)
    pipe.unet_encoder.to(device)

    garm_img= garm_img.convert("RGB").resize((768,1024))
    human_img_orig = dict["background"].convert("RGB")    
    
    if is_checked_crop:
        width, height = human_img_orig.size
        target_width = int(min(width, height * (3 / 4)))
        target_height = int(min(height, width * (4 / 3)))
        left = (width - target_width) / 2
        top = (height - target_height) / 2
        right = (width + target_width) / 2
        bottom = (height + target_height) / 2
        cropped_img = human_img_orig.crop((left, top, right, bottom))
        crop_size = cropped_img.size
        human_img = cropped_img.resize((768,1024))
    else:
        human_img = human_img_orig.resize((768,1024))


    if is_checked:
        keypoints = openpose_model(human_img.resize((384,512)))
        print(keypoints)
        model_parse, _ = parsing_model(human_img.resize((384,512)))
        print(model_parse)
        mask, mask_gray = get_mask_location('hd', "upper_body", model_parse, keypoints)
        mask = mask.resize((768,1024))
    else:
        mask = pil_to_binary_mask(dict['layers'][0].convert("RGB").resize((768, 1024)))
        # mask = transforms.ToTensor()(mask)
        # mask = mask.unsqueeze(0)
    mask_gray = (1-transforms.ToTensor()(mask)) * tensor_transfrom(human_img)
    mask_gray = to_pil_image((mask_gray+1.0)/2.0)


    human_img_arg = _apply_exif_orientation(human_img.resize((384,512)))
    human_img_arg = convert_PIL_to_numpy(human_img_arg, format="BGR")
     
    

    args = apply_net.create_argument_parser().parse_args(('show', './configs/densepose_rcnn_R_50_FPN_s1x.yaml', './ckpt/densepose/model_final_162be9.pkl', 'dp_segm', '-v', '--opts', 'MODEL.DEVICE', 'cuda'))
    # verbosity = getattr(args, "verbosity", None)
    pose_img = args.func(args,human_img_arg)    
    pose_img = pose_img[:,:,::-1]    
    pose_img = Image.fromarray(pose_img).resize((768,1024))
    
    with torch.no_grad():
        # Extract the images
        with torch.cuda.amp.autocast():
            with torch.no_grad():
                prompt = "model is wearing " + garment_des
                negative_prompt = "monochrome, lowres, bad anatomy, worst quality, low quality"
                with torch.inference_mode():
                    (
                        prompt_embeds,
                        negative_prompt_embeds,
                        pooled_prompt_embeds,
                        negative_pooled_prompt_embeds,
                    ) = pipe.encode_prompt(
                        prompt,
                        num_images_per_prompt=1,
                        do_classifier_free_guidance=True,
                        negative_prompt=negative_prompt,
                    )
                                    
                    prompt = "a photo of " + garment_des
                    negative_prompt = "monochrome, lowres, bad anatomy, worst quality, low quality"
                    if not isinstance(prompt, List):
                        prompt = [prompt] * 1
                    if not isinstance(negative_prompt, List):
                        negative_prompt = [negative_prompt] * 1
                    with torch.inference_mode():
                        (
                            prompt_embeds_c,
                            _,
                            _,
                            _,
                        ) = pipe.encode_prompt(
                            prompt,
                            num_images_per_prompt=1,
                            do_classifier_free_guidance=False,
                            negative_prompt=negative_prompt,
                        )



                    pose_img =  tensor_transfrom(pose_img).unsqueeze(0).to(device,torch.float16)
                    garm_tensor =  tensor_transfrom(garm_img).unsqueeze(0).to(device,torch.float16)
                    generator = torch.Generator(device).manual_seed(seed) if seed is not None else None
                    images = pipe(
                        prompt_embeds=prompt_embeds.to(device,torch.float16),
                        negative_prompt_embeds=negative_prompt_embeds.to(device,torch.float16),
                        pooled_prompt_embeds=pooled_prompt_embeds.to(device,torch.float16),
                        negative_pooled_prompt_embeds=negative_pooled_prompt_embeds.to(device,torch.float16),
                        num_inference_steps=denoise_steps,
                        generator=generator,
                        strength = 1.0,
                        pose_img = pose_img.to(device,torch.float16),
                        text_embeds_cloth=prompt_embeds_c.to(device,torch.float16),
                        cloth = garm_tensor.to(device,torch.float16),
                        mask_image=mask,
                        image=human_img, 
                        height=1024,
                        width=768,
                        ip_adapter_image = garm_img.resize((768,1024)),
                        guidance_scale=2.0,
                    )[0]

    if is_checked_crop:
        out_img = images[0].resize(crop_size)        
        human_img_orig.paste(out_img, (int(left), int(top)))    
        return human_img_orig, mask_gray
    else:
        # out_img = images[0].resize(crop_size)
        return images[0], mask_gray
    
    


    
garm_list = os.listdir(os.path.join(example_path,"cloth"))
garm_list_path = [os.path.join(example_path,"cloth",garm) for garm in garm_list]

human_list = os.listdir(os.path.join(example_path,"human"))
human_list_path = [os.path.join(example_path,"human",human) for human in human_list]

human_ex_list = []
for ex_human in human_list_path:
    ex_dict= {}
    ex_dict['background'] = ex_human
    ex_dict['layers'] = None
    ex_dict['composite'] = None
    human_ex_list.append(ex_dict)

##default human


image_blocks = gr.Blocks().queue()
with image_blocks as demo:    
    with gr.Row():
        with gr.Column():
            imgs = gr.ImageEditor(sources='upload', type="pil", label='Human. Mask with pen or use auto-masking', interactive=True)
            with gr.Row():
                is_checked = gr.Checkbox(label="Yes", info="Use auto-generated mask (Takes 5 seconds)",value=True)
            with gr.Row():
                is_checked_crop = gr.Checkbox(label="Yes", info="Use auto-crop & resizing",value=False)

            example = gr.Examples(
                inputs=imgs,
                examples_per_page=10,
                examples=human_ex_list
            )

        with gr.Column():
            garm_img = gr.Image(label="Garment", sources='upload', type="pil")
            with gr.Row(elem_id="prompt-container"):
                with gr.Row():
                    prompt = gr.Textbox(placeholder="Description of garment ex) Short Sleeve Round Neck T-shirts", show_label=False, elem_id="prompt")
            example = gr.Examples(
                inputs=garm_img,
                examples_per_page=8,
                examples=garm_list_path)
        with gr.Column():
            # image_out = gr.Image(label="Output", elem_id="output-img", height=400)
            masked_img = gr.Image(label="Masked image output", elem_id="masked-img",show_share_button=False)
        
        with gr.Column():
            # image_out = gr.Image(label="Output", elem_id="output-img", height=400)
            image_out = gr.Image(label="Output", elem_id="output-img",show_share_button=False)
            
        with gr.Column():
            densepose_img_out = gr.Image(label="Output", elem_id="densepose-img",show_share_button=False)
        # densepose_img = gr.Gallery(label="All images", show_label=False, elem_id="all-images", columns=[3], rows=[1], object_fit="contain", height="auto")



    with gr.Column():
        try_button = gr.Button(value="Try-on")
        with gr.Accordion(label="Advanced Settings", open=False):
            with gr.Row():
                denoise_steps = gr.Number(label="Denoising Steps", minimum=20, maximum=40, value=30, step=1)
                seed = gr.Number(label="Seed", minimum=-1, maximum=2147483647, step=1, value=42)

    densepose_state = gr.State(None)

    # Define the steps in sequence
    image_blocks = gr.Blocks().queue()
with image_blocks as demo:    
    with gr.Row():
        with gr.Column():
            imgs = gr.ImageEditor(sources='upload', type="pil", label='Human. Mask with pen or use auto-masking', interactive=True)
            with gr.Row():
                is_checked = gr.Checkbox(label="Yes", info="Use auto-generated mask (Takes 5 seconds)",value=True)
            with gr.Row():
                is_checked_crop = gr.Checkbox(label="Yes", info="Use auto-crop & resizing",value=False)

            example = gr.Examples(
                inputs=imgs,
                examples_per_page=10,
                examples=human_ex_list
            )

        with gr.Column():
            garm_img = gr.Image(label="Garment", sources='upload', type="pil")
            with gr.Row(elem_id="prompt-container"):
                with gr.Row():
                    prompt = gr.Textbox(placeholder="Description of garment ex) Short Sleeve Round Neck T-shirts", show_label=False, elem_id="prompt")
            example = gr.Examples(
                inputs=garm_img,
                examples_per_page=8,
                examples=garm_list_path)
        with gr.Column():
            masked_img = gr.Image(label="Masked image output", elem_id="masked-img", show_share_button=False)
        
        with gr.Column():
            image_out = gr.Image(label="Output", elem_id="output-img", show_share_button=False)
            
        with gr.Column():
            densepose_img_out = gr.Image(label="Dense-pose", elem_id="densepose-img", show_share_button=False)
        # densepose_img = gr.Gallery(label="All images", show_label=False, elem_id="all-images", columns=[3], rows=[1], object_fit="contain", height="auto")
        
        with gr.Column():
            human_parse_img_out = gr.Image(label="Human-Parse", elem_id="humanparse-img", show_share_button=False)
        # densepose_img = gr.Gallery(label="All images", show_label=False, elem_id="all-images", columns=[3], rows=[1], object_fit="contain", height="auto")

    with gr.Column():
        try_button = gr.Button(value="Try-on")
        get_denspose =gr.Button(value="Get-DensePose")
        get_humanparse =gr.Button(value="Get-HumanParse")
        with gr.Accordion(label="Advanced Settings", open=False):
            with gr.Row():
                denoise_steps = gr.Number(label="Denoising Steps", minimum=20, maximum=40, value=30, step=1)
                seed = gr.Number(label="Seed", minimum=-1, maximum =2147483647, step=1, value=42)

    densepose_state = gr.State(None)

    # Define the steps in sequence
    get_denspose.click(
        fn=process_densepose,
        inputs=[imgs],
        outputs=[densepose_img_out, densepose_state],
        api_name='process_densepose'
    )
    get_humanparse.click(
        fn=process_human_parsing,
        inputs=[imgs],
        outputs=[human_parse_img_out],
        api_name='process_humanparse'
    )
    try_button.click(
        fn=start_tryon,
        inputs=[imgs, garm_img, prompt, is_checked, is_checked_crop, denoise_steps, seed],
        outputs=[image_out, masked_img],
        api_name='start_tryon'
    )

image_blocks.launch(server_name="0.0.0.0", server_port=3000)