new_contents: #!/usr/bin/env python
  
  import cv2
  import numpy
  
  img = cv2.imread("akhead.jpg")
  
  b = numpy.zeros((img.shape[0], img.shape[1]), dtype=img.dtype)
  g = numpy.zeros((img.shape[0], img.shape[1]), dtype=img.dtype)
  r = numpy.zeros((img.shape[0], img.shape[1]), dtype=img.dtype)
  
  b[:, :] = img[:, :, 0]
  g[:, :] = img[:, :, 1]
  r[:, :] = img[:, :, 2]
  
  cv2.imshow("Blue", b)
  cv2.imshow("Green", g)
  cv2.imshow("Red", r)
  
  cv2.waitKey(0)
  cv2.destroyAllWindows()
subject: add split_image_numpy