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Delete app.py
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app.py
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import gradio as gr
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import numpy as np
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import random
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import os
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import torch
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from diffusers import StableDiffusionPipeline
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from peft import PeftModel, LoraConfig
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device = "cuda" if torch.cuda.is_available() else "cpu"
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model_id_default = "stable-diffusion-v1-5/stable-diffusion-v1-5"
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if torch.cuda.is_available():
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torch_dtype = torch.float16
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else:
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torch_dtype = torch.float32
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MAX_SEED = np.iinfo(np.int32).max
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MAX_IMAGE_SIZE = 1024
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# @spaces.GPU #[uncomment to use ZeroGPU]
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def infer(
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prompt,
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negative_prompt,
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width=512,
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height=512,
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model_id=model_id_default,
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seed=42,
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guidance_scale=7.0,
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lora_scale=1.0,
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num_inference_steps=20,
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progress=gr.Progress(track_tqdm=True),
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):
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generator = torch.Generator(device).manual_seed(seed)
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ckpt_dir='./model_output'
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unet_sub_dir = os.path.join(ckpt_dir, "unet")
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text_encoder_sub_dir = os.path.join(ckpt_dir, "text_encoder")
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if model_id is None:
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raise ValueError("Please specify the base model name or path")
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pipe = StableDiffusionPipeline.from_pretrained(model_id,
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torch_dtype=torch_dtype,
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safety_checker=None).to(device)
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pipe.unet = PeftModel.from_pretrained(pipe.unet, unet_sub_dir)
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pipe.text_encoder = PeftModel.from_pretrained(pipe.text_encoder, text_encoder_sub_dir)
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pipe.unet.load_state_dict({k: lora_scale*v for k, v in pipe.unet.state_dict().items()})
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pipe.text_encoder.load_state_dict({k: lora_scale*v for k, v in pipe.text_encoder.state_dict().items()})
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if torch_dtype in (torch.float16, torch.bfloat16):
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pipe.unet.half()
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pipe.text_encoder.half()
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pipe.to(device)
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image = pipe(
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prompt=prompt,
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negative_prompt=negative_prompt,
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guidance_scale=guidance_scale,
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num_inference_steps=num_inference_steps,
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width=width,
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height=height,
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generator=generator,
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).images[0]
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return image
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css = """
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#col-container {
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margin: 0 auto;
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max-width: 640px;
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}
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"""
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with gr.Blocks(css=css, fill_height=True) as demo:
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with gr.Column(elem_id="col-container"):
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gr.Markdown(" # Text-to-Image demo")
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with gr.Row():
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model_id = gr.Textbox(
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label="Model ID",
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max_lines=1,
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placeholder="Enter model id",
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value=model_id_default,
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)
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prompt = gr.Textbox(
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label="Prompt",
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max_lines=1,
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placeholder="Enter your prompt",
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)
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negative_prompt = gr.Textbox(
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label="Negative prompt",
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max_lines=1,
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placeholder="Enter your negative prompt",
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)
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with gr.Row():
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seed = gr.Number(
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label="Seed",
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minimum=0,
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maximum=MAX_SEED,
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step=1,
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value=42,
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)
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guidance_scale = gr.Slider(
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label="Guidance scale",
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minimum=0.0,
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maximum=30.0,
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step=0.1,
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value=7.0, # Replace with defaults that work for your model
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)
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with gr.Row():
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lora_scale = gr.Slider(
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label="LoRA scale",
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minimum=0.0,
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maximum=1.0,
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step=0.01,
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value=1.0,
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)
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num_inference_steps = gr.Slider(
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label="Number of inference steps",
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minimum=1,
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maximum=100,
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step=1,
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value=20, # Replace with defaults that work for your model
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)
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with gr.Accordion("Optional Settings", open=False):
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with gr.Row():
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width = gr.Slider(
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label="Width",
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minimum=256,
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maximum=MAX_IMAGE_SIZE,
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step=32,
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value=512, # Replace with defaults that work for your model
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)
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height = gr.Slider(
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label="Height",
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minimum=256,
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maximum=MAX_IMAGE_SIZE,
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step=32,
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value=512, # Replace with defaults that work for your model
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)
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run_button = gr.Button("Run", scale=0, variant="primary")
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result = gr.Image(label="Result", show_label=False)
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gr.on(
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triggers=[run_button.click],
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fn=infer,
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inputs=[
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prompt,
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negative_prompt,
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width,
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height,
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model_id,
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seed,
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guidance_scale,
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lora_scale,
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num_inference_steps
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],
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outputs=[result],
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)
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if __name__ == "__main__":
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demo.launch()
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