tuple([20,20]))) Create a frame around the monochrome image pix_framed = np.zeros(np.add(pix_gray.shape, print ("Order of the framed gray-scale image matrix:", pix_framed.shape) pix_framed [10: pix_gray.shape [0] +10, 10:pix_gray.shape [1]+10] = pix_gray plt.figure(figsize=(12,24)) plt.axis ('off') plt.imshow(pix_framed, cmap='gray') plt.show()