new_contents: #
  # divide_image_into_blocks.py
  # Created by pira on 2017/08/15.
  #
  
  #coding: utf-8
  
  from VideoDigitalWatermarking import *
  
  filename = 'test.bmp'
  image = readColorImage(filename)
  
  blocks = colorimage2block(image, [128,128])
  #print(blocks.shape)
  
  for i in np.arange(blocks.shape[0]):
  	for j in np.arange(blocks.shape[1]):
  		writeImage(str(i*blocks.shape[1]+j+1) + '.bmp', blocks[i][j])
subject: create divide imag into blocks sample