/* GIMP - The GNU Image Manipulation Program
 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef __LUT_FUNCS_H__
#define __LUT_FUNCS_H__


GimpLut * brightness_contrast_lut_new   (gdouble        brightness,
                                         gdouble        contrast,
                                         gint           n_channels);
void      brightness_contrast_lut_setup (GimpLut       *lut,
                                         gdouble        brightness,
                                         gdouble        contrast,
                                         gint           n_channels);

GimpLut * invert_lut_new                (gint           n_channels);

GimpLut * add_lut_new                   (gdouble        amount,
                                         gint           n_channels);

GimpLut * intersect_lut_new             (gdouble        value,
                                         gint           n_channels);

GimpLut * threshold_lut_new             (gdouble        value,
                                         gint           n_channels);

GimpLut * posterize_lut_new             (gint           levels,
                                         gint           n_channels);
void      posterize_lut_setup           (GimpLut       *lut,
                                         gint           levels,
                                         gint           n_channels);

GimpLut * equalize_lut_new              (GimpHistogram *histogram,
                                         gint           n_channels);


#endif /* __LUT_FUNCS_H__ */