OPENCV build issue

[mikeNike9]

I am trying to build the opencv wrapper and i am receiving this,

Scanning dependencies of target rs-grabcuts
[ 50%] Building CXX object CMakeFiles/rs-grabcuts.dir/rs-grabcuts.cpp.o
/home/mike/librealsense/wrappers/opencv/grabcuts/rs-grabcuts.cpp: In function ‘int main(int, char**)’:
/home/mike/librealsense/wrappers/opencv/grabcuts/rs-grabcuts.cpp:39:63: error: ‘ThresholdType’ has not been declared
auto create_mask_from_depth = [&](Mat& depth, int thresh, ThresholdType type) //#ThresholdTypes type);
^
CMakeFiles/rs-grabcuts.dir/build.make:62: recipe for target 'CMakeFiles/rs-grabcuts.dir/rs-grabcuts.cpp.o' failed
make[2]: *** [CMakeFiles/rs-grabcuts.dir/rs-grabcuts.cpp.o] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/rs-grabcuts.dir/all' failed
make[1]: *** [CMakeFiles/rs-grabcuts.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2

[dorodnic]

The examples are tested with OpenCV 3.4 - opencv-samples-for-intel-realsense-cameras
Please make sure you have the right version of OpenCV installed.
We also provide CV examples inside the Windows installer with every release.

[ajaymdesai]

OpenCV 4.0 remove a-lot of C Bindings. I ran into compile issues after brew upgrade of opencv to 4.0 since some api's are gone from C.

[dorodnic]

This should be resolved via #3196 in 2.18.1.
Please update