Integrating OpenCV (C++) with Visual Studio 2019
In this post, I will set up OpenCV v4.10.0 on Windows 10 and create a demo C++ project to demonstrate how to integrate OpenCV with Visual Studio 2019.
Setup OpenCV
1. Download
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Go to the OpenCV releases page.
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Find version 4.10.0.
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Click Windows to download the installer.
2. Install
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Run the installer.
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Specify
C:\as the installation path. -
After installation, a new folder named opencv should appear in
C:\.
3. Set Environment Variables
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Open Advanced System Properties in Windows 10.
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Click Environment Variables…
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Create a new system variable named OPENCV_DIR with the value:
C:\opencv\build\x64\vc16
- In the system variable Path, add:
%OPENCV_DIR%\bin
Create the Demo Project
1. New Project
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Create a new project in Visual Studio.
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Set the programming language to C++.
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From the filtered list, select Console App.
2. Project Properties
- Open the Property Pages window (Project > Properties).
Debug configuration:
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Set Configuration to Debug and Platform to x64.
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In C/C++ > General, under Additional Include Directories, add:
$(OPENCV_DIR)\..\..\include
- In Linker > General, under Additional Library Directories, add:
$(OPENCV_DIR)\lib
- In Linker > Input, under Additional Dependencies, add:
opencv_world4100d.lib;
- Click Apply.
Release configuration:
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Set Configuration to Release.
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Repeat the same steps for include and library directories.
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In Linker > Input, under Additional Dependencies, add:
opencv_world4100.lib; -
Click Apply.
Finally, in the Configuration Manager, remove the x86 (Win32) platform.
Run the Program
- Replace the default project code with the sample code below.
#include <opencv2/opencv.hpp>
using namespace cv;
int main()
{
Mat image = Mat::zeros(300, 600, CV_8UC3);
circle(image, Point(250, 150), 100, Scalar(0, 255, 128), -100);
circle(image, Point(350, 150), 100, Scalar(255, 255, 255), -100);
imshow("Display Window", image);
waitKey(0);
return 0;
}
- Build and run the project. If everything is set up correctly, a window should appear.
