opencv 双摄像头读取

[yinghuochong2012]

最近在利用opencv做双目是觉的研究，但程序一运行，窗口刚弹出来就自行关闭了，不知道为什么。有没有高手可以给看一下，代码来源于opencv教程http://blog.csdn.net/chenyusiyuan/article/details/4643313与http://blog.csdn.net/chenyusiyuan/article/details/5961769
双目摄像头用的是http://item.taobao.com/item.htm?spm=a230r.1.14.39.gI0qHQ&id=26828028858&ns=1#detail

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

int main(int argc, _TCHAR* argv[])
{

CvCapture* capture2 = cvCreateCameraCapture( 1 );
CvCapture* capture1 = cvCreateCameraCapture( 0 );


double w = 320, h = 240;
cvSetCaptureProperty ( capture1, CV_CAP_PROP_FRAME_WIDTH, w );
cvSetCaptureProperty ( capture1, CV_CAP_PROP_FRAME_HEIGHT, h );
cvSetCaptureProperty ( capture2, CV_CAP_PROP_FRAME_WIDTH, w );
cvSetCaptureProperty ( capture2, CV_CAP_PROP_FRAME_HEIGHT, h );

cvNamedWindow( "Camera_1", CV_WINDOW_AUTOSIZE );
cvNamedWindow( "Camera_2", CV_WINDOW_AUTOSIZE );

IplImage* frame1;
IplImage* frame2;

int n = 2;
while(1)
{
frame1 = cvQueryFrame( capture1 );
if( !frame1 )
break;
cvShowImage( "Camera_1", frame1 );

frame2 = cvQueryFrame( capture2 );
if( !frame2 )
break;
cvShowImage( "Camera_2", frame2 );

int key = cvWaitKey(30);
if( key == 27 )
break;
}
cvReleaseCapture( &capture1 );
cvReleaseCapture( &capture2 );
cvDestroyWindow( "Camera_1" );
cvDestroyWindow( "Camera_2" );

return 0;
}

[C_peter]

你跟进去看一下不就OK了！~

[罗博士]

打开摄像头以后，先检查一下。到底打开没有，再考虑后续问题。

[wqvbjhc]

CvCapture* capture2 = cvCreateCameraCapture( 1 ); CvCapture* capture1 = cvCreateCameraCapture( 0 ); 这2个有返回NULL的情况，导致 frame1 = cvQueryFrame( capture1 ); if( !frame1 ) break; 跳出了while,程序自动结束

[qq_29892417]

使用调试模式可以运行，但是直接运行就会跳出，还在查询