这个程序是对一段avi视频进行人脸检测，要求背景比较简单，因为把膨胀腐蚀的部分去掉了，所以实时性还不错，下面的图片是取的其中的某一帧。-This program is a avi video, face detection, requires relatively simple background, as part of the expansion of corrosion removed, so real time is also good, the following picture is