How to count number of white and black pixels in color picture in python? How to count total pixels using numpy

Question

I want to calculate persentage of black pixels and white pixels for the picture, its colorful one

import numpy as np
import matplotlib.pyplot as plt

image = cv2         


        

Answer 1

white_pixels = np.logical_and(255==cropped_image[:,:,0],np.logical_and(255==cropped_image[:,:,1],255==cropped_image[:,:,2]))


num_white = np.sum(white_pixels)

and the same with 0 for the black ones