opencv 放大视频

#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/core/core.hpp>

using namespace cv;


int main()
{
	VideoCapture cap(0);
	if (!cap.isOpened())
	{
		return -1;
	}
	Mat frame;
	Mat dst_up;
	bool stop = false;
	while (!stop)
	{
		cap >> frame;
		pyrUp(frame, dst_up, Size(frame.cols * 2, frame.rows * 2));
		imshow("我的视频", dst_up);
		if (waitKey(30) >= 0)
			stop = true;
	}
	return 0;
}