Noise in time1 images

[Bobholamovic]

Hi there. Thanks for providing this well-split dataset. However, during manual inspection of the data, I found that the images in each time1 subfolder seemed to be contanimated by some white noise, while those in time2 subfolders looked much clearer. Have you taken any preprocessing steps regarding noise removal upon the time1 images in your research, or, is this part of the intentional design of this dataset?