numpy: Invalid value encountered in true_divide

Question

I have two numpy arrays and I am trying to divide one with the other and at the same time, I want to make sure that the entries where the divisor is 0, should just be replaced w

Answer 1

You may have a NAN, INF, or NINF floating around somewhere. Try this:

np.isfinite(diff_images).all()
np.isfinite(b_0).all()

If one or both of those returns False, that's likely the cause of the runtime error.