old_contents: # -*- coding: utf-8 -*-
  import cv2
  
  if __name__ == "__main__":
      img = cv2.imread('/Users/cychiang/Desktop/samples/pedestrians/pedestrians128x64/per00924.ppm', cv2.CV_LOAD_IMAGE_GRAYSCALE)
      print img.shape
      # print height, width, depth
      cv2.imshow('ImageWindow',img)
      cv2.waitKey()
  
new_contents: # -*- coding: utf-8 -*-
  import cv2
  
  if __name__ == "__main__":
      img = cv2.imread('/Users/cychiang/Desktop/samples/pedestrians/pedestrians128x64/per00924.ppm', cv2.CV_LOAD_IMAGE_GRAYSCALE)
      print img.shape
      cv2.imshow('ImageWindow',img)
      cv2.waitKey()
  
subject: update image_test.py