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Add files via upload #1

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38 changes: 38 additions & 0 deletions Opencv_examples/preview.cpp
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Original file line number Diff line number Diff line change
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#include "opencv2/highgui/highgui.hpp"
#include <iostream>

using namespace cv;
using namespace std;

int main(int argc, char* argv[])
{
VideoCapture cap(0); // open the video camera 0
if (!cap.isOpened()) return -1;

double dWidth = cap.get(CV_CAP_PROP_FRAME_WIDTH);
double dHeight = cap.get(CV_CAP_PROP_FRAME_HEIGHT);

cout << "Frame Size = " << dWidth << "x" << dHeight << endl;
Size frameSize(static_cast<int>(dWidth), static_cast<int>(dHeight));

cv::namedWindow("Preview", cv::WINDOW_AUTOSIZE);

while (1) {
Mat frame;

bool bSuccess = cap.read(frame); // read a new frame from video
if (!bSuccess) {
cout << "ERROR: Cannot read a frame from video file" << endl;
break;
}

imshow("Preview", frame);

if (cv::waitKey(1) == 27) {
break;
}
}

return 0;
}