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https://blog.csdn.net/weixin_39190382?type=blog

0. 前言

有关c++操作opencv记录

1. 正文

1.1 图像读取、显示、保存

// 读取、显示、保存图像#include <opencv2/opencv.hpp>
#include <iostream>using namespace cv;
using namespace std;int main(){Mat img; // 创建空图像img = imread("/home/v/home.png") ;if(img.empty()){cout << "读取图片失败" << endl;return -1;}namedWindow("home"); // 无这行窗口大小不能改变imshow("home", img);imwrite("a.png",img);waitKey(0);return 0;
}