实战深度学习OpenCV(二)：读取并播放本地或者摄像头的视频

一.读取并播放的代码如下：

#include "pch.h" #include <iostream> #include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> #include<opencv2/imgproc/imgproc.hpp>


using namespace cv; int main() { VideoCapture a; a.open("C://Users//lenovo//Desktop//geeksong.mp4"); while (1) { Mat frame; a >> frame; imshow("读取视频", frame); waitKey(600); } return 0; }

 二.获取摄像头里的视频，只需要将读取视频的路径改为0就可以了：

#include "pch.h" #include <iostream> #include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> #include<opencv2/imgproc/imgproc.hpp>


using namespace cv; int main() { VideoCapture a; a.open(0); while (1) { Mat frame; a >> frame; imshow("读取视频", frame); waitKey(600); } return 0; }