Spaces:
Running
Running
Commit
·
4564834
1
Parent(s):
7a3e379
恢复AI图像生成功能,使用更轻量的方式
Browse files
app.py
CHANGED
@@ -59,36 +59,128 @@ def create_dummy_image():
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img = PILImage.new('RGB', (256, 256), color = (255, 100, 100))
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return img
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#
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logger.info("
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demo = gr.Interface(
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fn=
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inputs=gr.Textbox(label="
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outputs=gr.Image(type="pil", label="
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title="
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)
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return demo
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#
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demo =
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# 启动应用
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if __name__ == "__main__":
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try:
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logger.info("
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# 使用最小配置
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demo.launch(
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except Exception as e:
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logger.error(f"
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img = PILImage.new('RGB', (256, 256), color = (255, 100, 100))
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return img
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# 全局变量
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pipe = None
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# 懒加载AI模型函数
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def get_model():
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try:
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import torch
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from diffusers import StableDiffusionPipeline
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logger.info("开始加载模型...")
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# 使用较小的模型而不是SDXL
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model_id = "runwayml/stable-diffusion-v1-5"
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device = "cuda" if torch.cuda.is_available() else "cpu"
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logger.info(f"使用设备: {device}")
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# 优化设置以减少内存使用
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if torch.cuda.is_available():
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# 使用半精度
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pipe = StableDiffusionPipeline.from_pretrained(
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model_id,
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torch_dtype=torch.float16,
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safety_checker=None, # 禁用安全检查器以节省内存
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requires_safety_checker=False,
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use_safetensors=True
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)
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pipe = pipe.to(device)
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pipe.enable_attention_slicing() # 减少显存使用
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# 释放不必要的内存
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torch.cuda.empty_cache()
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else:
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# CPU版本,占用内存较大,但现在只用处理一个请求
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pipe = StableDiffusionPipeline.from_pretrained(
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model_id,
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safety_checker=None,
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requires_safety_checker=False,
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use_safetensors=True
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)
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pipe = pipe.to(device)
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logger.info("模型加载成功")
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return pipe
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except Exception as e:
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logger.error(f"模型加载失败: {e}")
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return None
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# 生成图像函数
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def generate_image(prompt):
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global pipe
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# 如果提示为空,使用默认提示
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if not prompt or prompt.strip() == "":
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prompt = "a beautiful landscape"
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logger.info(f"输入为空,使用默认提示词: {prompt}")
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logger.info(f"收到提示词: {prompt}")
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# 第一次调用时加载模型
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if pipe is None:
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pipe = get_model()
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if pipe is None:
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logger.error("模型加载失败,返回默认图像")
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return create_dummy_image()
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try:
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# 优化生成参数,减少内存需求
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logger.info("开始生成图像...")
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# 设置随机种子以确保结果一致性
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seed = random.randint(0, 2147483647)
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generator = torch.Generator(device=pipe.device).manual_seed(seed)
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# 使用最轻量级的参数
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image = pipe(
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prompt=prompt,
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num_inference_steps=3, # 极少的步骤
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guidance_scale=7.5,
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height=256, # 小尺寸
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width=256, # 小尺寸
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generator=generator
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).images[0]
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# 释放缓存,避免内存增长
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if torch.cuda.is_available():
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torch.cuda.empty_cache()
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logger.info(f"图像生成成功,种子: {seed}")
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return image
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except Exception as e:
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logger.error(f"生成过程发生错误: {e}")
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return create_dummy_image()
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# 创建Gradio界面
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def create_demo():
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# 使用简单界面,避免复杂组件
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demo = gr.Interface(
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fn=generate_image,
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inputs=gr.Textbox(label="输入提示词"),
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outputs=gr.Image(type="pil", label="生成的图像"),
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title="文本到图像生成",
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description="输入文本描述,AI将生成相应的图像(会加载较长时间,请耐心等待)",
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examples=["a cute cat", "mountain landscape"],
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cache_examples=False,
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allow_flagging="never" # 禁用标记功能以减少复杂性
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)
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return demo
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# 创建演示界面
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demo = create_demo()
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# 启动应用
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if __name__ == "__main__":
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try:
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logger.info("启动Gradio界面...")
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# 使用最小配置
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demo.launch(
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server_name="0.0.0.0",
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show_api=False, # 禁用API
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share=False, # 不创建公共链接
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debug=False, # 禁用调试��式
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quiet=True # 减少日志输出
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)
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except Exception as e:
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logger.error(f"启动失败: {e}")
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