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如何使用CogView4生成带有汉字的图像?

2025-08-30 1.3 K

利用CogView4生成含有汉字的图像需要以下步骤:

基础代码示例

创建一个Python文件(如generate.py),包含以下代码:

from diffusers import CogView4Pipeline
import torch
pipe = CogView4Pipeline.from_pretrained("THUDM/CogView4-6B", 
torch_dtype=torch.bfloat16).to("cuda")

汉字生成实现

  1. 在提示词中明确包含中文文字要求
  2. Example:
    prompt = "一张写有'欢迎体验CogView4'的广告海报,背景是蓝天白云"
  3. 指定输出尺寸:
    image = pipe(prompt=prompt, width=1024, height=1024).images[0]
  4. 保存结果:
    image.save("poster.png")

Optimization Recommendations

  • 对于复杂汉字,可增加guidance_scale值(3.5-7.0)
  • 适当增加num_inference_steps(建议50-100步)
  • 显存不足时可使用enable_model_cpu_offload()

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