/* Copyright (C) 1992 Aladdin Enterprises.  All rights reserved.
  
  This file is part of GNU ghostscript

  GNU ghostscript 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, or (at your option) any later version.

  GNU ghostscript 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
  ghostscript; see the file COPYING. If not, write to the Free Software Foundation,
  Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

  
*/

/* $Id: gxlum.h,v 1.4 2005/12/13 16:57:24 jemarch Exp $ */
/* Luminance computation parameters for Ghostscript */

#ifndef gxlum_INCLUDED
#  define gxlum_INCLUDED

/* Color weights used for computing luminance. */
#define lum_red_weight	30
#define lum_green_weight	59
#define lum_blue_weight	11
#define lum_all_weights	(lum_red_weight + lum_green_weight + lum_blue_weight)

#endif /* gxlum_INCLUDED */
