OPENCV程序内存储器不断增加，求帮助

OPENCV程序内存不断增加，求帮助！

#include "stdafx.h"   

#include"cv.h"   

#include"highgui.h"   

#include"stdio.h"   

#include <iostream>

 using namespace std;

  

// 实现将拍下来的图片缩放一倍   

IplImage* DoPyrDown(IplImage* image, int filter = IPL_GAUSSIAN_5x5)  

{  

	//assert(image->width%2==0 && image->height%2==0);

    // 设置大小缩小一倍   

    CvSize size = cvSize(image->width / 2,image->height / 2);  

    //初始化图片   

    IplImage* outImage = cvCreateImage(size,image->depth,image->nChannels);  

	//IplImage* outImage1 = cvCreateImage(size,image->depth,image->nChannels);  

    //实现缩放   

    cvPyrDown(image,outImage);  



	CvScalar s;

    int sum=0;

    for (int i=0;i<outImage->height;i++)

    {

        for (int j=0;j<outImage->width;j++)

        {

            s =  cvGet2D(outImage,i,j);

            //cout<<s.val[0]<<" "<<s.val[1]<<" "<<s.val[2]<<endl;

            sum = (s.val[0]+s.val[1]+s.val[2])/3;

            if (sum > 128)

            {

                s.val[0]=s.val[1]=s.val[2]=255;

                cvSet2D(outImage,i,j,s);

            }

            else

            {

                s.val[0]=s.val[1]=s.val[2]=0;

                cvSet2D(outImage,i,j,s);


            }

        }

    }

	//cvCvtColor(outImage,outImage1,CV_RGB2RGBA);


	return outImage;

}  


  

int main(int argc, char** argv)  

{  

    cvNamedWindow("vedio");  

    CvCapture* capture;  

     // 首先是要通过摄像设备来得到一个CvCapture对象   

    if(1 == argc)  

    {  

        capture = cvCreateCameraCapture(0);  

    }  

    else  

    {  

        capture = cvCreateCameraCapture(atoi(argv[1]));  

    }