运动目标检测（帧间差分法）——opencv

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#include<opencv2/opencv.hpp>#include<iostream>using namespace std;using namespace cv;int main(){    VideoCapture capture("C:\\Users\\aoe\\Desktop\\avi\\walk.avi");//获取视频    if (!capture.isOpened())        return -1;    double rate = capture.get(CV_CAP_PROP_FPS);//获取视频帧率    int delay = 1000 / rate;    Mat framepro, frame, dframe;    bool flag = false;    namedWindow("image");    namedWindow("test");    while (capture.read(frame))    {        if (false == flag)        {            framepro = frame.clone();//将第一帧图像拷贝给framePro            flag = true;        }        else        {            absdiff(frame, framepro, dframe);//帧间差分计算两幅图像各个通道的相对应元素的差的绝对值。            framepro = frame.clone();//将当前帧拷贝给framepro            threshold(dframe, dframe, 80, 255, CV_THRESH_BINARY);//阈值分割            imshow("image", frame);            imshow("test", dframe);            waitKey(delay);        }    }    waitKey();    return 0;}

opencv对视频的处理参考：
http://www.cnblogs.com/ronny/p/opencv_road_10.html

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