OpenCV内存不足 [英] OpenCV insufficient memory
问题描述
我在Visual C ++ 2008和OpenCV 2.1上运行以下代码。它工作一段时间（比如说3分钟），然后中止与错误说
I am running the following code on Visual C++ 2008 and OpenCV 2.1. It works for a while (say 3 minutes) and then aborts with an error saying
未知的功能，文件中的内存不足（未能分配92610字节） ..... \ocv\opencv\src\cxcore\cxalloc.cpp，line 52
"Insufficient Memory (Failed to allocate 92610 bytes) in unknown function, file ........\ocv\opencv\src\cxcore\cxalloc.cpp, line 52"
在某处必须有一些内存泄漏与图像创建），但我似乎无法抓住它。
There must be some memory leak somewhere (probably with image creation) but I can't seem to get hold of it.
#include "cv.h"
#include "highgui.h"
#include <stdio.h>
#include <iostream>
#include <math.h>
using namespace std;
void main()
{
int i, j;
int **arr = new int*[480], blob[6][8]={0};
int max, maxi=-10, maxj=-10, div=80;
int xmax=480, ymax=640;
int frameH, frameW, fps, numFrames;
double hue, sat, lum;
int maxcolor, mincolor, maxcolval, mincolval;
char key='a';
CvScalar pix, destpix, destpix2, destpix3;
IplImage *img, *dest, *hsv;
for(i=0; i<480; i++)
arr[i] = new int[640];
CvCapture *capture = cvCaptureFromCAM(0);
if(!capture)
{
cout<<"Cannot read video!!!!";
exit(0);
}
frameH = (int) cvGetCaptureProperty(capture, CV_CAP_PROP_FRAME_HEIGHT);
frameW = (int) cvGetCaptureProperty(capture, CV_CAP_PROP_FRAME_WIDTH);
fps = (int) cvGetCaptureProperty(capture, CV_CAP_PROP_FPS);
numFrames = (int) cvGetCaptureProperty(capture, CV_CAP_PROP_FRAME_COUNT);
printf("Width=%d Height=%d FPS=%d Count=%d\n", frameH, frameW, fps, numFrames);
cvNamedWindow("win1", CV_WINDOW_AUTOSIZE);
cvMoveWindow("win1", 10, 10);
cvNamedWindow("win2", CV_WINDOW_AUTOSIZE);
cvMoveWindow("win2", 600, 300);
destpix.val[0]=0;
destpix.val[1]=255;
destpix.val[2]=0;
destpix2.val[0]=0;
destpix2.val[1]=0;
destpix2.val[2]=0;
destpix3.val[0]=255;
destpix3.val[1]=255;
destpix3.val[2]=255;
while(key != 'q')
{
max=0;
maxi=-10;
maxj=-10;
img = cvQueryFrame(capture);
if(img == 0)break;
dest = cvCloneImage(img);
hsv = cvCloneImage(img);
cvCvtColor(img, hsv, CV_BGR2HSV);
for(i=0; i<xmax; i++)
for(j=0; j<ymax; j++)
{
arr[i][j]=0;
blob[i/div][j/div]=0;
}
cout<<endl<<cvGet2D(hsv, 5, 5).val[0];
//Looping through each pixel
for(i=0; i<xmax; i++)
{
for(j=0; j<ymax; j++)
{
//Getting the current pixel (i, j)
pix = cvGet2D(hsv, i, j);
//Setting all pixels to black
cvSet2D(dest, i, j, destpix2);
hue = pix.val[0];
sat = pix.val[1];
lum = pix.val[2];
//Looking for color red
if((hue<5 || hue>177) && sat>120 && lum>60)
{
arr[i][j] = 1;
cvSet2D(dest, i, j, destpix);
}
/*//Looking for color green
if((hue>90 && hue<100) && sat>120 && lum>60)
{
arr[i][j] = 1;
cvSet2D(dest, i, j, destpix);
}*/
/*//Looking for color blue
if((hue>100 && hue<110) && sat>120 && lum>60)
{
arr[i][j] = 1;
cvSet2D(dest, i, j, destpix);
}*/
/*//Looking for color yellow
if((hue>30 && hue<40) && sat>120 && lum>60)
{
arr[i][j] = 1;
cvSet2D(dest, i, j, destpix);
}*/
}
}
//Counting the blobs in each grid
for(i=0; i<xmax; i++)
{
for(j=0; j<ymax; j++)
{
if(arr[i][j])
{
blob[i/div][j/div]++;
}
}
}
//Finding the grid with the largest blob
for(i=0; i<xmax/div; i++)
for(j=0; j<ymax/div; j++)
if(blob[i][j]>max)
{
max=blob[i][j];
maxi=i;
maxj=j;
}
if(max>200)
{
//Borders
for(i=maxi*div; i<maxi*div+2; i++)
for(j=maxj*div; j<maxj*div+div; j++)
cvSet2D(dest, i, j, destpix3);
for(i=maxi*div+div-2; i<maxi*div+div; i++)
for(j=maxj*div; j<maxj*div+div; j++)
cvSet2D(dest, i, j, destpix3);
for(i=maxi*div; i<maxi*div+div; i++)
for(j=maxj*div; j<maxj*div+2; j++)
cvSet2D(dest, i, j, destpix3);
for(i=maxi*div; i<maxi*div+div; i++)
for(j=maxj*div+div-2; j<maxj*div+div; j++)
cvSet2D(dest, i, j, destpix3);
//Center
for(i=maxi*div+(div/2)-5; i<maxi*div+(div/2)+5; i++)
for(j=maxj*div+(div/2)-5; j<maxj*div+(div/2)+5; j++)
cvSet2D(dest, i, j, destpix3);
}
//Creating Windows
//cvCvtColor(fin, dest, CV_HSV2BGR);
key = cvWaitKey(20);
cvShowImage("win1", dest);
cvShowImage("win2", img);
}
cvWaitKey(0);
cvReleaseCapture(&capture);
cvReleaseImage(&dest);
cvDestroyWindow("win1");
cvDestroyWindow("win2");
}
推荐答案
当我试图分配内存时出现错误。
"Insufficient memory" really means "There was an error when I tried to allocate memory".
很可能你实际上已经损坏了某处，而不是实际用完内存，特别是这种风格的代码。
It's quite likely that you've actually corrupted something somewhere, rather than actually run out of memory, particularly with this style of code.
这篇关于OpenCV内存不足的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
