OpenCV2 多摄像头读取视频实现

来源：互联网发布：Python自动将逗号转义编辑：程序博客网时间：2024/05/17 23:16

//编程环境：VS2012，Opencv2.4.6

#include <opencv2/opencv.hpp>#include <iostream>using namespace cv;using namespace std;int main(int argc, char* argv[]){VideoCapture cap1;VideoCapture cap2;cap1.open(0);cap2.open(1);if(!cap1.isOpened()){return -1;}if(!cap2.isOpened()){return -2;}double w = 320, h = 240;cap1.set(CV_CAP_PROP_FRAME_WIDTH,w);    cap1.set(CV_CAP_PROP_FRAME_HEIGHT,h);    cap2.set(CV_CAP_PROP_FRAME_WIDTH,w);    cap2.set(CV_CAP_PROP_FRAME_HEIGHT,h);Mat frame1,frame2;bool stop = false;namedWindow("Video1");namedWindow("Video2");while(!stop){cap1>>frame1;/*if (frame1.empty()){return -1;}*/imshow("Video1",frame1);cap2>>frame2;/*if (frame2.empty()){return -2;}*/imshow("Video2",frame2);if(waitKey(30) >=0)stop = true;}return 0;}

C 风格代码 OpenCV1 实现，较为鲁棒，环境同上

#include <opencv2/opencv.hpp>using namespace cv;int main(int argc, char* argv[]){    CvCapture* capture1 = cvCreateCameraCapture( 0 );    CvCapture* capture2 = cvCreateCameraCapture( 1 );    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;    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;}

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