Opencv4.2.0+vs2015 configuration

One 、 Configure include path

choose X64 compiler

【 View 】→ 【 Other windows 】→ 【 Property Manager 】

open Debug|x64 Properties of the first item under

Configure include path （ Choose your own path here , Here is my opencv route ）
D:\opencv\build\include\opencv2
D:\opencv\build\include

Two 、 Configuration Library Directory

D:\opencv\build\x64\vc14\lib

3、 ... and 、 Configure linker

opencv_world420d.lib

Four 、 Configure environment variables

In environment variable Path Add
D:\opencv\build\x64\vc14\bin

5、 ... and 、 Code testing

#include <opencv2/opencv.hpp>
#include <iostream>

using namespace cv;
using namespace std;

int main()
{
    
	Mat src = imread("D:/images/test.png");
	imshow("input", src);

	waitKey(0);
}