mirror of https://github.com/GNOME/gimp.git
73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __LUT_FUNCS_H__
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#define __LUT_FUNCS_H__
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#include "gimplutF.h"
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#include "gimphistogramF.h"
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typedef enum
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{
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VALUE_LUT,
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RED_LUT,
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GREEN_LUT,
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BLUE_LUT,
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ALPHA_LUT,
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GRAY_LUT = 0 /*< skip >*/
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} ChannelLutType;
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/* brightness contrast */
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void brightness_contrast_lut_setup (GimpLut *lut,
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double brightness, double contrast,
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int nchannels);
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GimpLut *brightness_contrast_lut_new (double brightness, double contrast,
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int nchannels);
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/* invert */
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void invert_lut_setup (GimpLut *lut, int nchannels);
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GimpLut *invert_lut_new (int nchannels);
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/* add (or subtract) */
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void add_lut_setup (GimpLut *lut, double ammount, int nchannels);
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GimpLut *add_lut_new (double ammount, int nchannels);
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/* intersect (MINIMUM(pixel, value)) */
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void intersect_lut_setup (GimpLut *lut, double value, int nchannels);
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GimpLut *intersect_lut_new (double value, int nchannels);
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/* threshold */
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void threshold_lut_setup (GimpLut *lut, double value, int nchannels);
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GimpLut *threshold_lut_new (double value, int nchannels);
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/* levels */
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void levels_lut_setup (GimpLut *lut, double *gamma,
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int *low_input, int *high_input,
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int *low_output, int *high_output, int nchannels);
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GimpLut *levels_lut_new (double *gamma, int *low_input, int *high_input,
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int *low_output, int *high_output, int nchannels);
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/* posterize */
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void posterize_lut_setup (GimpLut *lut, int levels, int nchannels);
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GimpLut *posterize_lut_new (int levels, int nchannels);
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/* equalize histogram */
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void eq_histogram_lut_setup (GimpLut *lut, GimpHistogram *hist, int bytes);
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GimpLut *eq_histogram_lut_new (GimpHistogram *h, int nchannels);
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#endif /* __LUT_FUNCS_H__ */
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