error: (-215:Assertion failed) !_src.empty() in function 'cvtColor'

[Deleted user]

Looks like there is some kind of mistake in the code. When it comes to reading the next file in the NUAA dataset, it is passing an empty data inside.

[Deleted user]

So, after checking through all the steps, I've found out the issue.
I've changed the variable for my own implementation, so please do mind that 😅

Instead of this:

cv2.imwrite(newPath, cv2.cvtColor(crop, cv2.COLOR_RGB2BGR))

We can add this:

if crop.size==0:
    print("Ignored this - crop picture seems to be empty")
        else:
    cv2.imwrite(newPath, cv2.cvtColor(crop, cv2.COLOR_RGB2BGR))

So this will avoid all images with numpy array size less than zero. Not a perfect solution, but it should work well.

[Deleted user]

Since there has been no activity for a long time, I'll be closing this issue.