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Diffstat (limited to 'base/gxlum.h')
| -rw-r--r-- | base/gxlum.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/base/gxlum.h b/base/gxlum.h new file mode 100644 index 000000000..7c3ba5bcc --- /dev/null +++ b/base/gxlum.h @@ -0,0 +1,28 @@ +/* Copyright (C) 2001-2012 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 the license contained in the file LICENSE in this distribution. + + 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. +*/ + + +/* 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 */ |