Binary numpy array to list of integers?

Question

I have a binary array, and I would like to convert it into a list of integers, where each int is a row of the array.

For example:

from numpy import *         


        

Answer 1

If you like working directly with bitwise math, this one should work pretty well.

def bits2int(a, axis=-1):
    return np.right_shift(np.packbits(a, axis=axis), 8 - a.shape[axis]).squeeze()

bits2int(a)
Out: array([12,  4,  7, 15], dtype=uint8)