OpenCv installation under Windows

1. Download the opencv installation package

Releases - OpenCVhttps://opencv.org/releases/

 2. Install opencv-4.6.0-vc14_vc15.exe to D:\opencv\

3. Configure the opencv system environment

 

4. Verify the installation results

 4.1 Create a new win32 console program

4.2 Configure X64 for Debug and Release

The actual operation uses the debug mode

4.3 Configuration library dependencies

4.4 Test code example

#include "stdafx.h"
#include <opencv2\opencv.hpp>


using namespace std;
using namespace cv;

int main()
{
	Mat img = imread("D://SSphoto.jpg");
	if (img.empty())
	{
		cout << "not" << endl;
		system("pause");
		return -1;
	}
	namedWindow("mao", 1);
	imshow("mao", img);
	waitKey(0);
	return 0;
}

 4.5. Run the test program