OpenCV —— Calling Cameras
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Before you call two or more camera You have got to ensure the cameras to use different HUB!
//Here hide some headers and common callingsint main(){ VideoCapture cap(0); while(1) { Mat frame; cap >> frame; imshow("camera",frame); if(waitKey(0) == 27)break; } return 0;}If you want to use more usb-cameras to show image,you just need to replace cap(0) with cap(1)(take two cameras for example).And you also need to call one more Mat variary to receive the data-stream.
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