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Diffstat (limited to 'gs/base/gxlum.h')
-rw-r--r-- | gs/base/gxlum.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gs/base/gxlum.h b/gs/base/gxlum.h new file mode 100644 index 000000000..bda365bf4 --- /dev/null +++ b/gs/base/gxlum.h @@ -0,0 +1,26 @@ +/* Copyright (C) 2001-2006 Artifex Software, Inc. + All Rights Reserved. + + This software is provided AS-IS with no warranty, either express or + implied. + + This software is distributed under license and may not be copied, modified + or distributed except as expressly authorized under the terms of that + license. Refer to licensing information at http://www.artifex.com/ + or contact Artifex Software, Inc., 7 Mt. Lassen Drive - Suite A-134, + San Rafael, CA 94903, U.S.A., +1(415)492-9861, for further information. +*/ + +/* $Id$ */ +/* 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 */ |