opencvCompatibilityVersion.h

#ifndef OPENCVCOMPATIBILITYVERSION_H
#define OPENCVCOMPATIBILITYVERSION_H

/***
 * Header for OpenCV compatibility between version 2.X.Y and 3.X.Y. If opencv 3.X.Y
 * is used then the flag __OPENCV3__ is defined.
 *
 * **/

#include <opencv2/core/version.hpp>
#if (CV_MAJOR_VERSION == 3) //becarefull if you are using opencv 2.3.Y, cause in this version the enumeration is
                            //"CV_VERSION_EPOCH = 2 . CV_VERSION_MAJOR = X . CV_VERSION_MINOR = Y", but in opencv 3.X.Y is
                            //"CV_MAJOR_VERSION = 3 . CV_MINOR_VERSION = X . CV_SUBMINOR_VERSION = Y", with CV_VERSION_MAJOR = CV_MAJOR_VERSION
  #define __OPENCV3__
#endif

#endif // OPENCVCOMPATIBILITYVERSION_H