simple color (C/C++) distance Toolkit with support for color conversion (RGB, XYZ, Lab) and color distance calculations (CIE76, CIE94 and CIEDE200)

============================================================================

 You MUST
		#define CLRTK_DEFINE
 in EXACTLY _one_ C or C++ file that includes this header, BEFORE the
 include, like this:
		#define CLRTK_DEFINE
		#include "clrtk.h"
 All other files should just #include "clrtk.h" without the #define.

============================================================================

1.00  Initial release

If you use this color Toolkit in a publication, please reference: Voshol, G.P. (2020). clrtk: A simple color Toolkit (Version 1.0) [Software]. Available from https://github.com/gerbenvoshol/Color-Toolkit

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

• https://www.easyrgb.com/index.php?X=MATH&H=02text2

Written by Gerben Voshol.