opencv高斯背景建模

#include <iostream>
#include <string>  

#include <opencv2/opencv.hpp>  

int main(int argc, char** argv)
{
    std::string videoFile = "../test.avi";  

    cv::VideoCapture capture;
    capture.open(videoFile);  

    if (!capture.isOpened())
    {
        std::cout<<"read video failure"<<std::endl;
        return -;
    }  

    cv::BackgroundSubtractorMOG2 mog;  

    cv::Mat foreground;
    cv::Mat background;  

    cv::Mat frame;
    long frameNo = ;
    while (capture.read(frame))
    {
        ++frameNo;  

        std::cout<<frameNo<<std::endl;  

        // 运动前景检测，并更新背景
        mog(frame, foreground, 0.001);         

        // 腐蚀
        cv::erode(foreground, foreground, cv::Mat());  

        // 膨胀
        cv::dilate(foreground, foreground, cv::Mat());  

        mog.getBackgroundImage(background);   // 返回当前背景图像  

        cv::imshow("video", foreground);
        cv::imshow("background", background);  

        if (cv::waitKey() > )
        {
            break;
        }
    }  

    return ;
}