SOLUTION : MAY BE YOU INSTALL OPENCV BUT OPENCV NOT CONTAIN VIDEO MODULE SO INSTALL GITHUB FILE OF OPENCV AND RUN THIS FILE (opt_flow )IN OPENCV/PYTHON/SAMPLE/OPT ...

For Jackass Forever, Johnny Knoxville and director Jeff Tremaine decided it was time to bring in some fresh meat: Namely, Sean “Poopies” McInerney, Jasper Dolphin, Eric Manaka, Zach Holmes, and Rachel ...