51 lines
1.1 KiB
C++
51 lines
1.1 KiB
C++
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#include "opencv2/core.hpp"
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#include "opencv2/imgproc.hpp"
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#include "opencv2/highgui.hpp"
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#include "opencv2/videoio.hpp"
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#include <iostream>
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using namespace cv;
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using namespace std;
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void drawText(Mat & image);
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int main()
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{
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cout << "Built with OpenCV " << CV_VERSION << endl;
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Mat image;
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VideoCapture capture;
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capture.open(0);
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if(capture.isOpened())
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{
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cout << "Capture is opened" << endl;
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for(;;)
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{
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capture >> image;
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if(image.empty())
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break;
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drawText(image);
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imshow("Sample", image);
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if(waitKey(10) >= 0)
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break;
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}
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}
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else
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{
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cout << "No capture" << endl;
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image = Mat::zeros(480, 640, CV_8UC1);
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drawText(image);
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imshow("Sample", image);
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waitKey(0);
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}
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return 0;
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}
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void drawText(Mat & image)
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{
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putText(image, "Hello OpenCV",
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Point(20, 50),
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FONT_HERSHEY_COMPLEX, 1, // font face and scale
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Scalar(255, 255, 255), // white
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1, LINE_AA); // line thickness and type
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}
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