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| #!/usr/bin/env python | |
| from __future__ import annotations | |
| import argparse | |
| import os | |
| import pickle | |
| import sys | |
| import gradio as gr | |
| import numpy as np | |
| import torch | |
| import torch.nn as nn | |
| from huggingface_hub import hf_hub_download | |
| sys.path.insert(0, 'StyleGAN-Human') | |
| TOKEN = os.environ['TOKEN'] | |
| 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('--share', action='store_true') | |
| parser.add_argument('--port', type=int) | |
| parser.add_argument('--disable-queue', | |
| dest='enable_queue', | |
| action='store_false') | |
| return parser.parse_args() | |
| class App: | |
| def __init__(self, device: torch.device): | |
| self.device = device | |
| self.model = self.load_model('stylegan_human_v2_1024.pkl') | |
| def load_model(self, file_name: str) -> nn.Module: | |
| path = hf_hub_download('hysts/StyleGAN-Human', | |
| f'models/{file_name}', | |
| use_auth_token=TOKEN) | |
| with open(path, 'rb') as f: | |
| model = pickle.load(f)['G_ema'] | |
| model.eval() | |
| model.to(self.device) | |
| with torch.inference_mode(): | |
| z = torch.zeros((1, model.z_dim)).to(self.device) | |
| label = torch.zeros([1, model.c_dim], device=self.device) | |
| model(z, label, force_fp32=True) | |
| return model | |
| def generate_z(self, z_dim: int, seed: int) -> torch.Tensor: | |
| return torch.from_numpy(np.random.RandomState(seed).randn( | |
| 1, z_dim)).to(self.device).float() | |
| def generate_single_image(self, seed: int, | |
| truncation_psi: float) -> np.ndarray: | |
| seed = int(np.clip(seed, 0, np.iinfo(np.uint32).max)) | |
| z = self.generate_z(self.model.z_dim, seed) | |
| label = torch.zeros([1, self.model.c_dim], device=self.device) | |
| out = self.model(z, | |
| label, | |
| truncation_psi=truncation_psi, | |
| force_fp32=True) | |
| out = (out.permute(0, 2, 3, 1) * 127.5 + 128).clamp(0, 255).to( | |
| torch.uint8) | |
| return out[0].cpu().numpy() | |
| def generate_interpolated_images( | |
| self, seed0: int, psi0: float, seed1: int, psi1: float, | |
| num_intermediate: int) -> list[np.ndarray]: | |
| seed0 = int(np.clip(seed0, 0, np.iinfo(np.uint32).max)) | |
| seed1 = int(np.clip(seed1, 0, np.iinfo(np.uint32).max)) | |
| z0 = self.generate_z(self.model.z_dim, seed0) | |
| z1 = self.generate_z(self.model.z_dim, seed1) | |
| vec = z1 - z0 | |
| dvec = vec / (num_intermediate + 1) | |
| zs = [z0 + dvec * i for i in range(num_intermediate + 2)] | |
| dpsi = (psi1 - psi0) / (num_intermediate + 1) | |
| psis = [psi0 + dpsi * i for i in range(num_intermediate + 2)] | |
| label = torch.zeros([1, self.model.c_dim], device=self.device) | |
| res = [] | |
| for z, psi in zip(zs, psis): | |
| out = self.model(z, label, truncation_psi=psi, force_fp32=True) | |
| out = (out.permute(0, 2, 3, 1) * 127.5 + 128).clamp(0, 255).to( | |
| torch.uint8) | |
| out = out[0].cpu().numpy() | |
| res.append(out) | |
| return res | |
| def main(): | |
| args = parse_args() | |
| app = App(device=torch.device(args.device)) | |
| with gr.Blocks(theme=args.theme) as demo: | |
| gr.Markdown('''<center><h1>StyleGAN-Human</h1></center> | |
| This is a Blocks version of [this app](https://huggingface.co/spaces/hysts/StyleGAN-Human) and [this app](https://huggingface.co/spaces/hysts/StyleGAN-Human-Interpolation). | |
| ''') | |
| with gr.Row(): | |
| with gr.Column(): | |
| with gr.Row(): | |
| seed1 = gr.Number(value=6876, label='Seed 1') | |
| psi1 = gr.Slider(0, | |
| 2, | |
| value=0.7, | |
| step=0.05, | |
| label='Truncation psi 1') | |
| with gr.Row(): | |
| generate_button1 = gr.Button('Generate') | |
| with gr.Row(): | |
| generated_image1 = gr.Image(type='numpy', | |
| label='Generated Image 1') | |
| with gr.Column(): | |
| with gr.Row(): | |
| seed2 = gr.Number(value=6886, label='Seed 2') | |
| psi2 = gr.Slider(0, | |
| 2, | |
| value=0.7, | |
| step=0.05, | |
| label='Truncation psi 2') | |
| with gr.Row(): | |
| generate_button2 = gr.Button('Generate') | |
| with gr.Row(): | |
| generated_image2 = gr.Image(type='numpy', | |
| label='Generated Image 2') | |
| with gr.Row(): | |
| with gr.Column(): | |
| with gr.Row(): | |
| num_frames = gr.Slider( | |
| 0, | |
| 41, | |
| value=7, | |
| step=1, | |
| label='Number of Intermediate Frames') | |
| with gr.Row(): | |
| interpolate_button = gr.Button('Interpolate') | |
| with gr.Row(): | |
| interpolated_images = gr.Gallery(label='Output Images') | |
| gr.Markdown( | |
| '<center><img src="https://visitor-badge.glitch.me/badge?page_id=gradio-blocks.stylegan-human" alt="visitor badge"/></center>' | |
| ) | |
| generate_button1.click(app.generate_single_image, | |
| inputs=[seed1, psi1], | |
| outputs=generated_image1) | |
| generate_button2.click(app.generate_single_image, | |
| inputs=[seed2, psi2], | |
| outputs=generated_image2) | |
| interpolate_button.click(app.generate_interpolated_images, | |
| inputs=[seed1, psi1, seed2, psi2, num_frames], | |
| outputs=interpolated_images) | |
| demo.launch( | |
| enable_queue=args.enable_queue, | |
| server_port=args.port, | |
| share=args.share, | |
| ) | |
| if __name__ == '__main__': | |
| main() | |