IndexError: index -1 is out of bounds for axis 0 with size 0

[bemoregt]

Hi, @fabioperez

I met this error when run generate_lesions.py

Kerb:skin-data-augmentation kerbal$ python3 generate_lesions.py $TRAIN_CSV $TRAIN_DIR 42000 --sigma 20 --output mix_lesion_images
ISIC_0011205 ISIC_0014639
ISIC_0000468 ISIC_0013360
ISIC_0000007 ISIC_0000206
ISIC_0000475 ISIC_0011199
ISIC_0000103 ISIC_0009504
Traceback (most recent call last):
File "generate_lesions.py", line 77, in
args.sigma)
File "generate_lesions.py", line 67, in main
gauss_sigma=sigma)
File "/Users/kerbal/skin-data-augmentation/auglib/augmentation/two_lesions.py", line 67, in mix_lesions
lesion_bg_masked)
File "/Users/kerbal/skin-data-augmentation/auglib/augmentation/two_lesions.py", line 51, in _histogram_matching
t_quantiles /= t_quantiles[-1]
IndexError: index -1 is out of bounds for axis 0 with size 0

What's wrong to me ??

Thanks in advance.
Best,

from @bemoregt.