internal extern static IntPtr cveBFMatcherCreate( Features2D.DistanceType distanceType, [MarshalAs(CvInvoke.BoolMarshalType)] bool crossCheck, ref IntPtr dmPtr);
internal extern static IntPtr CvBruteForceMatcherCreate( Features2D.DistanceType distanceType, [MarshalAs(CvInvoke.BoolMarshalType)] bool crossCheck);