if (mask_[i, j] >= 127).any(): #mask_[i, j] >= 127:

[kaitanidis]

I had to make the afformentioned change in file ImageLoader2D.py in line 58 because the original code threw an error. Sorry for my english.

[leiwb-coding]

I think this operation is binarizing the image, similar to the threshold function in OpenCV. I'm not sure if this is correct