Opencv之读取摄像头

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

int main(int argv ,char ** argc)
{
    CvCapture * capture=0;
    capture = cvCreateCameraCapture(-1);
    cvNamedWindow("Myvideo",CV_WINDOW_AUTOSIZE);
    IplImage *bgr_frame=NULL;
    double fps = cvGetCaptureProperty(capture, CV_CAP_PROP_FPS);
    CvSize size =cvSize((int)cvGetCaptureProperty(capture,CV_CAP_PROP_FRAME_WIDTH),(int)cvGetCaptureProperty(capture,CV_CAP_PROP_FRAME_HEIGHT));
    IplImage * logpolar_frame =cvCreateImage(size,IPL_DEPTH_8U,3);
    while(1){
        bgr_frame= cvQueryFrame(capture);
        cvShowImage("Myvideo",bgr_frame);
        char c =cvWaitKey(33);
        if(c==27)
            break;
    }
    cvReleaseCapture(&capture);
    cvDestroyWindow("Myvideo");
    return 0;
}