Visual Studio 2019 CMake project with OpenCV

• File -> New -> Project -> CMake Project

• Give a project name (CMakeOpenCVTest)

• Open CMakeList.txt and edit as below

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cmake_minimum_required (VERSION 3.8)

project ("CMakeOpenCVTest")

add_subdirectory ("CMakeOpenCVTest")

cmake_policy(SET CMP0079 NEW)

FIND_PACKAGE(OpenCV REQUIRED)

TARGET_LINK_LIBRARIES("CMakeOpenCVTest" ${OpenCV_LIBS})

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• From tool bar click Manage Configurations from drop down (x64-Debug). Then CMakeSettings.json file will be created. Save it. Add x64-Release configuration if required. Note that opencv build configuration (Release) must match with cmake configuration (x64-Release)

• Select the required configuration (x64-Release) in tool bar and set OpenCV_DIR to Opencv installed directory where OpenCVConfig.cmake exist

• Done. Here is a code to test.

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#include "CMakeOpenCVTest.h"

#include <opencv2/core.hpp>

#include <opencv2/highgui.hpp>

using namespace std;

using namespace cv;

int main()

{

cout << "Hello CMake OpenCV" << endl;

Mat img = imread("BingImageOfTheDay.jpg");

namedWindow("Display Image", WINDOW_AUTOSIZE);

imshow("Display Image", img);

waitKey(0);

return 0;

}

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