实现视频跟踪的，用于摄像头的切换。用vc++来实现的，对于学习数字图像处理的同事们会有所帮助的，欢迎大家踊跃下载。-Video tracking for camera switching. Using vc++ to realize, for the study of digital image processing will be helpful to colleagues, and everyone enthusiastically welcome download.