app.py

# import gradio as gr
# from diffusers import DiffusionPipeline
# import torch
# from diffusers import DDPMScheduler, UNet2DModel
# from PIL import Image
# import numpy as np


# def erzeuge(prompt):
#     return pipeline(prompt).images  # [0]


# def erzeuge_komplex(prompt):
#     scheduler = DDPMScheduler.from_pretrained("google/ddpm-cat-256")
#     model = UNet2DModel.from_pretrained("google/ddpm-cat-256").to("cuda")
#     scheduler.set_timesteps(50)

#     sample_size = model.config.sample_size
#     noise = torch.randn((1, 3, sample_size, sample_size)).to("cuda")
#     input = noise

#     for t in scheduler.timesteps:
#         with torch.no_grad():
#             noisy_residual = model(input, t).sample
#             prev_noisy_sample = scheduler.step(noisy_residual, t, input).prev_sample
#             input = prev_noisy_sample

#     image = (input / 2 + 0.5).clamp(0, 1)
#     image = image.cpu().permute(0, 2, 3, 1).numpy()[0]
#     image = Image.fromarray((image * 255).round().astype("uint8"))
#     return image


# # pipeline = DiffusionPipeline.from_pretrained("stabilityai/stable-diffusion-2")
# # pipeline = DiffusionPipeline.from_pretrained("google/ddpm-cat-256")
# pipeline = DiffusionPipeline.from_pretrained("google/ddpm-celebahq-256")

# # pipeline.to("cuda")


# with gr.Blocks() as demo:
#     with gr.Column(variant="panel"):
#         with gr.Row(variant="compact"):
#             text = gr.Textbox(
#                 label="Deine Beschreibung:",
#                 show_label=False,
#                 max_lines=1,
#                 placeholder="Bildbeschreibung",
#             ).scale(
#                 container=False,
#             )
#             btn = gr.Button("erzeuge Bild").style(full_width=False, min_width=100)

#         gallery = gr.Gallery(
#             label="Erzeugtes Bild", show_label=False, elem_id="gallery"
#         ).style(columns=[2], rows=[2], object_fit="contain", height="auto")

#     btn.click(erzeuge, inputs=[text], outputs=[gallery])
#     text.submit(erzeuge, inputs=[text], outputs=[gallery])

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







from diffusers import DiffusionPipeline
from diffusers import DDPMPipeline, DDIMPipeline, PNDMPipeline
import torch
import gradio as gr
import random

pipeline = DiffusionPipeline.from_pretrained("google/ddpm-celebahq-256")
# pipeline.to("cuda")

def predict(steps, seed):
    generator = torch.manual_seed(seed)
    for i in range(1,steps):
        yield pipeline(generator=generator, num_inference_steps=i).images[0]

random_seed = random.randint(0, 2147483647)
gr.Interface(
    predict,
    inputs=[
        gr.inputs.Slider(1, 100, label='Inference Steps', default=5, step=1),
        gr.inputs.Slider(0, 2147483647, label='Seed', default=random_seed, step=1),
    ],
    outputs=gr.Image(shape=[128,128], type="pil", elem_id="output_image"),
    css="#output_image{width: 256px}",
    title="Unconditional butterflies",
    description="图片生成器",
).queue().launch()