mex C++ use opencv library in Matlab 2020b

I have amatlab code downloaded from the internet, this code has .cpp function and need opencv library.

I installed opencv 4.6.0, visual studio 2017, and installed opencvinterface.mlpkginstall toolbox, and added the path of opencv2 on matlab

but i still hav this error

mexOpenCV Keypoint_Detector.cpp

Building with 'Microsoft Visual C++ 2017'.

Error using mexOpenCV (line 135)

Keypoint_Detector.cpp

E:\New codes\IterativeCMFD-master\Functions\Keypoint_Detector.cpp(3):

fatal error C1083: Cannot open include file:

'\opencv2\highgui\highgui.hpp': No such file or directory

mex Keypoint_Detector.cpp

Building with 'Microsoft Visual C++ 2017'.

Error using mex

Keypoint_Detector.cpp

E:\New

codes\IterativeCMFD-master\Functions\Keypoint_Detector.cpp(2):

fatal error C1083: Cannot open include file:

'opencv2\core\core.hpp': No such file or directory

can anyone helping me solving this error?

Answer 1

[Ujwal Durgam]

Hi asmaa atalaa,

mexOpenCV does not include the highgui module. Do not include highgui, if you want to use mexOpenCV.

However your code does not use this module, try to comment out the line 2.

Try using OpenCV Support - MATLAB & Simulink (mathworks.com) Mex Interface support for converting opencv data type to MATLAB datatype and display images in MATLAB.

If you want to use you installed opencv, you can use mex Keypoint_Detector.cpp.

However, you need to specify the Path to the OpenCV include files path and Libs path using -I and -L and link library using -l

example: mex Keypoint_Detector.cpp. -I/usr/local/include -L/us/local/lib -lopencv_world