此程序的功能:对视频进行灰度处理，将灰度图进行Canny边缘检测，分别以视频形式输出。初学者可以看看，希望对你有帮助，可以直接运行-The function of this program: the video gray scale processing, grayscale Canny edge detection, respectively, a video output. Beginners can see, you want to help, you can run directly