This is probably a trivial question but if we are using OpenCV3.0, then why are we using 'opencv2' in the include files instead of opencv3?
#include "opencv2/core.hpp"
#include "opencv2/core/utility.hpp"
#include "opencv2/imgproc.hpp"
#include "opencv2/video/background_segm.hpp"
#include "opencv2/videoio.hpp"
#include "opencv2/highgui.hpp"