cannot find the code for preprocessing step

[xudunyuan]

Dear authors:

Try to reimplement your work, but I found that there is no code for img preprocessing.
When executing baseline, an error will occur like the following:

Traceback (most recent call last):
File "train_baseline.py", line 174, in
dataset, groups, groups_train, groups_val = LoadANHIR(args.prep, subset)
File "/research/dept8/msc/dyxu21/RA/code/SFG/baseline/reader/ANHIR.py", line 89, in LoadANHIR
assert 0, os.path.join(prep_path1, fimg)