Webcam feed in OpenCV. #ComputerVision

webcam.cpp

#include <opencv2/opencv.hpp>
#include <iostream>

using namespace std;
using namespace cv;

int main(void) {
    // capture a video, for webcam, pass 0 instead of file path..
    VideoCapture cap(0);
    if (!cap.isOpened()) {
        cout << "Error opening video stream or file" << endl;
        return -1;
    }

    while (1) {
        Mat frame;
        cap >> frame;

        if (frame.empty()) {
            break;
        }
        imshow("Frame", frame);
        char c=(char)waitKey(25);
        if (c==27) {
            break;
        }
    }
    cap.release();
    destroyAllWindows();
    return 0;
}