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 -1;  
    }  
  
  
    cv::BackgroundSubtractorMOG2 mog;  
  
    cv::Mat foreground;  
    cv::Mat background;  
  
    cv::Mat frame;  
    long frameNo = 0;  
    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(25) > 0)  
        {  
            break;  
        }  
    }  
      
  
  
    return 0;  
}