/** * @file alg_gamma.h * @brief gamma correction algorithm definition * @author Patrick Roth - roth@stettbacher.ch * @copyright Stettbacher Signal Processing AG * * @remarks * *
* This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ** */ /* * This code inplements gamma correction algorithm and is pixel size independent. Including this code at the * C-Source file will define the pixel-bit-depth (see gamma_corr.c). */ // static void gamma_corr8(uint8_t *img_rgb, const uint8_t *img_in, const int height, const int width, const int *gamma_table, const int is_color) // static void gamma_corr16(uint8_t *img_rgb, const uint8_t *img_in, const int height, const int width, const int *gamma_table, const int is_color) { int index, num_pixel; if(is_color) { num_pixel = height*width*3; } else { num_pixel = height*width; } for(index = 0; index < num_pixel; index++) { img_rgb[index] = gamma_table[img_in[index]]; } }