下面用于从 4 网络摄像头获取实时视频源。但是我写的所有代码都仅限于四个摄像头。我想让这段代码动态化。如果连接了两个摄像头,它应该只显示两个窗口,如果连接了 3 个,它应该显示 3 个窗口。我正在获取连接到系统的摄像头数量。我想为该数量的相机实现代码。有人可以指出我正确的方向。
using namespace cv;
int main(){
//Create matrix to store image
Mat image;
Mat image1;
Mat image2;
Mat image3;
//Mat image1;
//initailize capture
videoInput VI;
int numDevices = VI.listDevices(); //getting number of camera attached to system dynamically.
VideoCapture cap;
VideoCapture cap1;
VideoCapture cap2;
VideoCapture cap3;
bool x = false;
//VideoCapture cap1;
cap.open(0);
cap1.open(1);
cap2.open(2);
cap3.open(3);
namedWindow("Camera 1",1);
namedWindow("Camera 2",1);
namedWindow("Camera 3",1);
namedWindow("Camera 4",1);
while(1){
//copy webcam stream to image
cap >> image;
cap1 >> image1;
cap2 >> image2;
cap3 >> image3;
cap4 >> image4;
//cap1 >> image1;
imshow("Camera 1",image);
imshow("Camera 2",image1);
imshow("Camera 3",image2);
imshow("Camera 4",image3);
//imshow("Camera 2",image1);
//delay 33ms
waitKey(33);
}
}