The OpenCV "Video Surveillance" facility, also called "blob tracker" through much of the code, is a simple but practical facility intended to track moving foreground objects against a relatively static background. Conceptually it consists of a three-

opencv 对视频文件或者摄像头的图像进行提取或者保存每一帧的代码-opencv extract or save the code on each frame of the video file or camera images

VC环境下opencv实现读取视频，实现逐帧读取并保存-VC environment opencv to read the video, frame by frame to achieve read and save