The support files provide an OpenCV Interface C++ API for integrating your OpenCV C++ code into MATLAB®. You can also use these support files to build MEX-files that call OpenCV functions. The support files contain graphics processing unit (GPU) support.
See Install and Use Computer Vision Toolbox Interface for OpenCV in MATLAB procedures and examples.
Install and Use Computer Vision Toolbox Interface for OpenCV in MATLAB
Convert OpenCV data types to MATLAB supported data types