The code was acquired and adapted from https://github.com/codingforfun/ZernikeMoments. The original copyright notice was as follows:

                          3D Zernike Moments
    Copyright (C) 2003 by Computer Graphics Group, University of Bonn
           http://www.cg.cs.uni-bonn.de/project-pages/3dsearch/

Code by Marcin Novotni:     marcin@cs.uni-bonn.de

for more information, see the paper:

@inproceedings{novotni-2003-3d,
    author = {M. Novotni and R. Klein},
    title = {3{D} {Z}ernike Descriptors for Content Based Shape Retrieval},
    booktitle = {The 8th ACM Symposium on Solid Modeling and Applications},
    pages = {216--225},
    year = {2003},
    month = {June},
    institution = {Universit\"{a}t Bonn},
    conference = {The 8th ACM Symposium on Solid Modeling and Applications, June 16-20, Seattle, WA}
}
 *---------------------------------------------------------------------------*
 *                                                                           *
 *                                License                                    *
 *                                                                           *
 *  This library is free software; you can redistribute it and/or modify it  *
 *  under the terms of the GNU Library General Public License as published   *
 *  by the Free Software Foundation, version 2.                              *
 *                                                                           *
 *  This library is distributed in the hope that it will be useful, but      *
 *  WITHOUT ANY WARRANTY; without even the implied warranty of               *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU        *
 *  Library General Public License for more details.                         *
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 *  You should have received a copy of the GNU Library General Public        *
 *  License along with this library; if not, write to the Free Software      *
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                *
 *                                                                           *
\*===========================================================================*/
