About the datasets

[long123524]

What should the composition of the data set folder look like? What does the .lst file do? Beginners ask for advice

[xwjabc]

You can refer to https://github.com/xwjabc/hed/blob/master/datasets.py#L19
Basically, in train_pair.lst, each line has an image path and its corresponding edge path.
In test.lst, each line has an image path.
The dataset folder structure can be arbitrary as long as the .lst files follow the above description.