Upload app.py

app.py

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+#!/usr/bin/env python
+
+from __future__ import annotations
+
+import argparse
+import functools
+import os
+import pathlib
+import sys
+from typing import Callable
+
+if os.environ.get('SYSTEM') == 'spaces':
+    os.system("sed -i '10,17d' DualStyleGAN/model/stylegan/op/fused_act.py")
+    os.system("sed -i '10,17d' DualStyleGAN/model/stylegan/op/upfirdn2d.py")
+
+sys.path.insert(0, 'DualStyleGAN')
+
+import dlib
+import gradio as gr
+import huggingface_hub
+import numpy as np
+import PIL.Image
+import torch
+import torch.nn as nn
+import torchvision.transforms as T
+from model.dualstylegan import DualStyleGAN
+from model.encoder.align_all_parallel import align_face
+from model.encoder.psp import pSp
+
+ORIGINAL_REPO_URL = 'https://github.com/williamyang1991/DualStyleGAN'
+TITLE = 'williamyang1991/DualStyleGAN'
+DESCRIPTION = f"""This is a demo for {ORIGINAL_REPO_URL}.
+
+![overview](https://raw.githubusercontent.com/williamyang1991/DualStyleGAN/main/doc_images/overview.jpg)
+
+You can select style images for each style type from the tables below.
+The style image index should be in the following range:
+(cartoon: 0-316, caricature: 0-198, anime: 0-173, arcane: 0-99, comic: 0-100, pixar: 0-121, slamdunk: 0-119)
+"""
+ARTICLE = """## Style images
+
+Note that the style images here for Arcane, comic, Pixar, and Slamdunk are the reconstructed ones, not the original ones due to copyright issues.
+
+### Cartoon
+![cartoon style images](https://raw.githubusercontent.com/williamyang1991/DualStyleGAN/main/doc_images/cartoon_overview.jpg)
+
+### Caricature
+![caricature style images](https://raw.githubusercontent.com/williamyang1991/DualStyleGAN/main/doc_images/caricature_overview.jpg)
+
+### Anime
+![anime style images](https://raw.githubusercontent.com/williamyang1991/DualStyleGAN/main/doc_images/anime_overview.jpg)
+
+### Arcane
+![arcane style images](https://raw.githubusercontent.com/williamyang1991/DualStyleGAN/main/doc_images/Reconstruction_arcane_overview.jpg)
+
+### Comic
+![comic style images](https://raw.githubusercontent.com/williamyang1991/DualStyleGAN/main/doc_images/Reconstruction_comic_overview.jpg)
+
+### Pixar
+![pixar style images](https://raw.githubusercontent.com/williamyang1991/DualStyleGAN/main/doc_images/Reconstruction_pixar_overview.jpg)
+
+### Slamdunk
+![slamdunk style images](https://raw.githubusercontent.com/williamyang1991/DualStyleGAN/main/doc_images/Reconstruction_slamdunk_overview.jpg)
+"""
+
+TOKEN = os.environ['TOKEN']
+MODEL_REPO = 'hysts/DualStyleGAN'
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--device', type=str, default='cpu')
+    parser.add_argument('--theme', type=str)
+    parser.add_argument('--live', action='store_true')
+    parser.add_argument('--share', action='store_true')
+    parser.add_argument('--port', type=int)
+    parser.add_argument('--disable-queue',
+                        dest='enable_queue',
+                        action='store_false')
+    parser.add_argument('--allow-flagging', type=str, default='never')
+    parser.add_argument('--allow-screenshot', action='store_true')
+    return parser.parse_args()
+
+
+def load_encoder(device: torch.device) -> nn.Module:
+    ckpt_path = huggingface_hub.hf_hub_download(MODEL_REPO,
+                                                'models/encoder.pt',
+                                                use_auth_token=TOKEN)
+    ckpt = torch.load(ckpt_path, map_location='cpu')
+    opts = ckpt['opts']
+    opts['device'] = device.type
+    opts['checkpoint_path'] = ckpt_path
+    opts = argparse.Namespace(**opts)
+    model = pSp(opts)
+    model.to(device)
+    model.eval()
+    return model
+
+
+def load_generator(style_type: str, device: torch.device) -> nn.Module:
+    model = DualStyleGAN(1024, 512, 8, 2, res_index=6)
+    ckpt_path = huggingface_hub.hf_hub_download(
+        MODEL_REPO, f'models/{style_type}/generator.pt', use_auth_token=TOKEN)
+    ckpt = torch.load(ckpt_path, map_location='cpu')
+    model.load_state_dict(ckpt['g_ema'])
+    model.to(device)
+    model.eval()
+    return model
+
+
+def load_exstylecode(style_type: str) -> dict[str, np.ndarray]:
+    if style_type in ['cartoon', 'caricature', 'anime']:
+        filename = 'refined_exstyle_code.npy'
+    else:
+        filename = 'exstyle_code.npy'
+    path = huggingface_hub.hf_hub_download(MODEL_REPO,
+                                           f'models/{style_type}/{filename}',
+                                           use_auth_token=TOKEN)
+    exstyles = np.load(path, allow_pickle=True).item()
+    return exstyles
+
+
+def create_transform() -> Callable:
+    transform = T.Compose([
+        T.Resize(256),
+        T.CenterCrop(256),
+        T.ToTensor(),
+        T.Normalize([0.5, 0.5, 0.5], [0.5, 0.5, 0.5]),
+    ])
+    return transform
+
+
+def create_dlib_landmark_model():
+    path = huggingface_hub.hf_hub_download(
+        'hysts/dlib_face_landmark_model',
+        'shape_predictor_68_face_landmarks.dat',
+        use_auth_token=TOKEN)
+    return dlib.shape_predictor(path)
+
+
+def denormalize(tensor: torch.Tensor) -> torch.Tensor:
+    return torch.clamp((tensor + 1) / 2 * 255, 0, 255).to(torch.uint8)
+
+
+def postprocess(tensor: torch.Tensor) -> PIL.Image.Image:
+    tensor = denormalize(tensor)
+    image = tensor.cpu().numpy().transpose(1, 2, 0)
+    return PIL.Image.fromarray(image)
+
+
+@torch.inference_mode()
+def run(
+    image,
+    style_type: str,
+    style_id: float,
+    structure_weight: float,
+    color_weight: float,
+    dlib_landmark_model,
+    encoder: nn.Module,
+    generator_dict: dict[str, nn.Module],
+    exstyle_dict: dict[str, dict[str, np.ndarray]],
+    transform: Callable,
+    device: torch.device,
+) -> tuple[PIL.Image.Image, PIL.Image.Image, PIL.Image.Image, PIL.Image.Image,
+           PIL.Image.Image]:
+    generator = generator_dict[style_type]
+    exstyles = exstyle_dict[style_type]
+
+    style_id = int(style_id)
+    style_id = min(max(0, style_id), len(exstyles) - 1)
+
+    stylename = list(exstyles.keys())[style_id]
+
+    image = align_face(filepath=image.name, predictor=dlib_landmark_model)
+    input_data = transform(image).unsqueeze(0).to(device)
+
+    img_rec, instyle = encoder(input_data,
+                               randomize_noise=False,
+                               return_latents=True,
+                               z_plus_latent=True,
+                               return_z_plus_latent=True,
+                               resize=False)
+    img_rec = torch.clamp(img_rec.detach(), -1, 1)
+
+    latent = torch.tensor(exstyles[stylename]).repeat(2, 1, 1).to(device)
+    # latent[0] for both color and structrue transfer and latent[1] for only structrue transfer
+    latent[1, 7:18] = instyle[0, 7:18]
+    exstyle = generator.generator.style(
+        latent.reshape(latent.shape[0] * latent.shape[1],
+                       latent.shape[2])).reshape(latent.shape)
+
+    img_gen, _ = generator([instyle.repeat(2, 1, 1)],
+                           exstyle,
+                           z_plus_latent=True,
+                           truncation=0.7,
+                           truncation_latent=0,
+                           use_res=True,
+                           interp_weights=[structure_weight] * 7 +
+                           [color_weight] * 11)
+    img_gen = torch.clamp(img_gen.detach(), -1, 1)
+    # deactivate color-related layers by setting w_c = 0
+    img_gen2, _ = generator([instyle],
+                            exstyle[0:1],
+                            z_plus_latent=True,
+                            truncation=0.7,
+                            truncation_latent=0,
+                            use_res=True,
+                            interp_weights=[structure_weight] * 7 + [0] * 11)
+    img_gen2 = torch.clamp(img_gen2.detach(), -1, 1)
+
+    img_rec = postprocess(img_rec[0])
+    img_gen0 = postprocess(img_gen[0])
+    img_gen1 = postprocess(img_gen[1])
+    img_gen2 = postprocess(img_gen2[0])
+
+    return image, img_rec, img_gen0, img_gen1, img_gen2
+
+
+def main():
+    gr.close_all()
+
+    args = parse_args()
+    device = torch.device(args.device)
+
+    style_types = [
+        'cartoon',
+        'caricature',
+        'anime',
+        'arcane',
+        'comic',
+        'pixar',
+        'slamdunk',
+    ]
+    generator_dict = {
+        style_type: load_generator(style_type, device)
+        for style_type in style_types
+    }
+    exstyle_dict = {
+        style_type: load_exstylecode(style_type)
+        for style_type in style_types
+    }
+
+    dlib_landmark_model = create_dlib_landmark_model()
+    encoder = load_encoder(device)
+    transform = create_transform()
+
+    func = functools.partial(run,
+                             dlib_landmark_model=dlib_landmark_model,
+                             encoder=encoder,
+                             generator_dict=generator_dict,
+                             exstyle_dict=exstyle_dict,
+                             transform=transform,
+                             device=device)
+    func = functools.update_wrapper(func, run)
+
+    image_paths = sorted(pathlib.Path('images').glob('*.jpg'))
+    examples = [[path.as_posix(), 'cartoon', 26, 0.6, 1.0]
+                for path in image_paths]
+
+    gr.Interface(
+        func,
+        [
+            gr.inputs.Image(type='file', label='Input Image'),
+            gr.inputs.Radio(
+                style_types,
+                type='value',
+                default='cartoon',
+                label='Style Type',
+            ),
+            gr.inputs.Number(default=26, label='Style Image Index'),
+            gr.inputs.Slider(
+                0, 1, step=0.1, default=0.6, label='Structure Weight'),
+            gr.inputs.Slider(0, 1, step=0.1, default=1.0,
+                             label='Color Weight'),
+        ],
+        [
+            gr.outputs.Image(type='pil', label='Aligned Face'),
+            gr.outputs.Image(type='pil', label='Reconstructed'),
+            gr.outputs.Image(type='pil',
+                             label='Result 1 (Color and structure transfer)'),
+            gr.outputs.Image(type='pil',
+                             label='Result 2 (Structure transfer only)'),
+            gr.outputs.Image(
+                type='pil',
+                label='Result 3 (Color-related layers deactivated)'),
+        ],
+        examples=examples,
+        theme=args.theme,
+        title=TITLE,
+        description=DESCRIPTION,
+        article=ARTICLE,
+        allow_screenshot=args.allow_screenshot,
+        allow_flagging=args.allow_flagging,
+        live=args.live,
+    ).launch(
+        enable_queue=args.enable_queue,
+        server_port=args.port,
+        share=args.share,
+    )
+
+
+if __name__ == '__main__':
+    main()