text: Title: about generate images from simulation to real world
  Body: Hi, I 'm a new guy about image translation. Hope for your help.
  
  >This is domain A. 1920×1080 images from unity3D.
  >![图片1](https://user-images.githubusercontent.com/59331333/144011576-106a0a15-5cd8-4f2f-9607-444575e9e731.png)
  >
  >And this is domain B. 1920×1080 underwater images from onboard camera.
  >![图片2](https://user-images.githubusercontent.com/59331333/144011585-a8b35166-0653-4370-88a5-dab61f6c03f7.png)
  
  I trained with cycle GAN by --crop size 512, and tested by --preprocess none. But the result looks like bad.
  I guess wether the random crop may not include the small target every times，or any other reason. I really don't know why and how to solve it. I hope that you can give me some tips or  a little inspiration.
  
  >This is the input image.
  >![20211123_183443_real](https://user-images.githubusercontent.com/59331333/144018986-b4f6e29f-764c-44cc-a48f-b9aa0544d72f.png)
  >
  >And this is the output with epoch 110.
  >![20211123_183443_fake](https://user-images.githubusercontent.com/59331333/144018333-2003a347-86d7-44d9-bf9d-cb5494b65a7e.png)
  
  
  