From a0f501fa5650d0b6062cc8f26b34bce11137643d Mon Sep 17 00:00:00 2001 From: Patrick Roth Date: Fri, 4 Oct 2019 11:51:48 +0200 Subject: initial commit import from github --- alg_gamma.h | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 alg_gamma.h (limited to 'alg_gamma.h') diff --git a/alg_gamma.h b/alg_gamma.h new file mode 100644 index 0000000..2f9a7ae --- /dev/null +++ b/alg_gamma.h @@ -0,0 +1,59 @@ +/** +* @file alg_gamma.h +* @brief gamma correction algorithm definition +* @author Patrick Roth - roth@stettbacher.ch +* @version 1.0 +* @date 2015-09-08 +* @copyright 2012-2016 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]]; + } +} + + + + + + + + + + -- cgit v1.2.1