Set the OpenCV enviroment variable and add it to the systems path
Open Visual Studio 2019 and create a new project inside Visual studio by clicking Create a new project. Choose Console App as type. Enter its name and select the path where to create it.
Click View ‣ Property to open Property Manager. Right click Debug|x64 and click Add New Project Property Sheet to add a new property sheet.
Use for example the OpenCV_Debug name. Then by selecting the sheet Right Click ‣ Properties.
Go the C++ groups General entry and under the Additional Include Directories add the path to your OpenCV include.
$(OPENCV_DIR)\..\..\includeNext go to the Linker ‣ General and under the Additional Library Directories add the libs directory:
$(OPENCV_DIR)\libGo to the Linker ‣ Input and under the Additional Dependencies entry add following modules.
opencv_world412d.libNow click ok to save and repeat step 4 ~ 6 to create a new property inside the Release|64 rule section. Make sure to omit the d letters from the library names.
Test it!