usb摄像头的读取和视频的播放和暂停 图像的边缘检测和移动检测 利用opencv和vs2010-read usb camera and video playback and pause image edge detection and motion detection using opencv and vs2010

从摄像头或者AVI文件中得到视频流，对视频流进行边缘检测，并输出结果。 -The video stream, the video stream for edge detection, and outputs the result obtained from the camera or the AVI file.