opencv运动目标检测与视频文件保存源代码

/**************************************************
 * 背景建模，运动物体检测
 *      
 **************************************************/

/***********************************************************************
 * OpenCV example
 * By Shiqi Yu 2006
 ***********************************************************************/

#include <stdio.h>
#include <cv.h>
#include <cxcore.h>
#include <highgui.h>

int main( int argc, char** argv )
{
  //声明IplImage指针
  IplImage* pFrame = NULL; 
  IplImage* pFrImg = NULL;
  IplImage* pBkImg = NULL;

  CvMat* pFrameMat = NULL;
  CvMat* pFrMat = NULL;
  CvMat* pBkMat = NULL;
  
  CvCapture* pCapture = NULL;
  CvVideoWriter * writer=0;
  
  int nFrmNum = 0;

  int fps=50;
  int framew=500;
  int frameh=600;
  int iscolor=1;

  writer=cvCreateVideoWriter("h:\\out.avi",CV_FOURCC('P','I','M','1'),fps,cvSize(framew,frameh),iscolor);
  //创建窗口
  cvNamedWindow("video", 1);
  cvNamedWindow("background",1);
  cvNamedWindow("foreground",1);
  //使窗口有序排列
  cvMoveWindow("video", 30, 0);
  cvMoveWindow("background", 360, 0);
  cvMoveWindow("foreground", 690, 0);



  if( argc > 2 )
    {
      fprintf(stderr, "Usage: bkgrd [video_file_name]\n");
      return -1;
    }

  //打开摄像头
  if (argc ==1)
    if( !(pCapture = cvCaptureFromCAM(0)))
      {
fprintf(stderr, "Can not open camera.\n");
return -2;
      }