If I want to train a model, what kind of data set should I prepare?

[aircoal0210]

Thanks a lot for your contributions.
I want to know how do I prepare the data set. Is the pattern of raindrops or a composite of raindrops and pictures?
Put all the data in the data folder? ground truthu also?
please give a answer

[hhb072]

Please refer to the folder 'data/test12_test'.
Each image in the data folder should be a combination of a rain image and its clean label, where the left part is the rain image and the right is the label.

[aircoal0210]

where is the 'data/test12_test'.? or u means 'data/rain12_test.list'?