先介绍实现视频图像目标检测的几种算法，然后介绍一种开放源代码的计算机视觉类库OpenCV,主要阐述该类库的特点及其结构，最后通过“检测一个视频中的运动物体”这一实例探讨了使用OpenCV进行编程的方法。-First, the algorithm of target detection based on video images, and then introduced a kind of open source computer vision library OpenCV, main chara

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