#!/usr/bin/python2.7 import cv2 import test_swig_opencv img = cv2.imread("test_swig_opencv.jpg") o = test_swig_opencv.UsefulStuffUsingOpenCV() o.doit(img) cv2.namedWindow("test", flags=cv2.WINDOW_NORMAL) cv2.imshow("test", img) cv2.waitKey(0)