opencv读取和显示视频

#include
#include

using namespace std;
using namespace cv;

int main()
{
	VideoCapture video("F:\image\v2.mp4");//用VideoCapture类来读取一个视频
	if (video.isOpened())//用isOpened函数判断是否成功读取
	{
		cout << "视频图像的宽度" << video.get(CAP_PROP_frame_WIDTH) << endl;
		cout << "视频图像的高度" << video.get(CAP_PROP_frame_HEIGHT) << endl;
		cout << "视频帧率" << video.get(CAP_PROP_FPS) << endl;
		cout << "视频的总帧数" << video.get(CAP_PROP_frame_COUNT) << endl;
	}
	else
	{
		cout << "好像错了哦..." << endl;
		return -1;
	}
	while (1)
	{
		Mat frame;
		video >> frame;//将视频逐帧导入frame
		if (frame.empty())
		{
			break;
		}
		imshow("视频", frame);//利用imshow展示每一帧图片，但帧与帧之间间隔（1/视频频率）秒，使得它们看起来就是一个视频
		waitKey(1000 / video.get(CAP_PROP_FPS));
	}

	waitKey();
	return 0;
}

效果如下