Visual Studio configures OpenCV C++ version

1. VS configuration

1. OpenCV download

• GitHUb download: https://github.com/opencv/opencv/releases
  It is recommended to download 4.1.2, which is currently more commonly used. The direct download address is attached ( https://github.com/opencv/opencv/releases/tag/4.5.5 )
  
  ! ! ! I’ve written this far, why haven’t I downloaded it yet, ah ah ah,
  so I uploaded it to Alibaba Cloud Disk, there is no speed limit, it’s great ( https://www.aliyundrive.com/s/WWtsUR2TQgX )

2. Installation

1. I unzipped it to the D drive, you can do whatever you want
2. Add environment variables:

2. Create a project

1. Create a new c++ console project

2. Create project

3. Configure project package directory
   
   
   

4. In the same way, configure the library directory yourself

5. Configure the linker and enter it directly ( opencv_world412d.lib )

run

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

using namespace cv;
using namespace std;

int main()
{
    
    
    Mat image = Mat::zeros(300,300, CV_8UC3);
    circle(image, Point(150, 150), 100, Scalar(0, 255, 0), -100);
    circle(image, Point(150, 150), 50, Scalar(0, 0, 255), -100);
    imshow("circle", image);
    waitKey(0);
    return 0;
}

running result