OpenCV show two cameras 同时显示两个摄像头-白红宇

OpenCV show two cameras 同时显示两个摄像头

阅读量：4955 次

发布时间：2019-06-12

本文共 1644 字，大约阅读时间需要 5 分钟。

用OpenCV同时显示两个摄像头的内容的代码如下：

#include 
     
      #include 
      
       #include 
       
        #include 
        
         #include 
         
          #include 
          
           using namespace std;int _tmain(int argc, _TCHAR* argv[]) { CvCapture* cam0 = cvCaptureFromCAM(CV_CAP_DSHOW + 0); if(!cam0) { fprintf(stderr, "Could not initialize opening of Camera 0..\n"); system("Pause"); return -1; } printf("cam0 initialized\n"); double height0 = cvGetCaptureProperty(cam0, CV_CAP_PROP_FRAME_HEIGHT); double width0 = cvGetCaptureProperty(cam0, CV_CAP_PROP_FRAME_WIDTH); cvNamedWindow("Camera 0",CV_WINDOW_AUTOSIZE); //create a window called "Camera 0" CvCapture* cam1 = cvCaptureFromCAM(CV_CAP_DSHOW + 1); if(!cam1) { fprintf(stderr, "Could not initialize opening of Camera 1..\n"); system("Pause"); return -1; } printf("cam1 initialized\n"); double height1 = cvGetCaptureProperty(cam1, CV_CAP_PROP_FRAME_HEIGHT); double width1 = cvGetCaptureProperty(cam1, CV_CAP_PROP_FRAME_WIDTH); cvNamedWindow("Camera 1",CV_WINDOW_AUTOSIZE); //create a window called "Camera 1" while (1) { IplImage *cam0Frame = cvQueryFrame(cam0); if (cam0Frame) { cvShowImage("Camera 0", cam0Frame); } IplImage *cam1Frame = cvQueryFrame(cam1); if (cam1Frame) { cvShowImage("Camera 1", cam1Frame); } if (cvWaitKey(30) == 27) //wait for 'Esc' key press for 30ms. If 'Esc' key is pressed, break loop { cout << "Esc key is pressed by user" << endl; break; } } cvReleaseCapture(&cam0); cvReleaseCapture(&cam1); cvDestroyWindow("Camera 0"); cvDestroyWindow("Camera 1"); return 0;}