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authorPatrick Roth <roth@stettbacher.ch>2019-10-04 11:51:48 +0200
committerPatrick Roth <roth@stettbacher.ch>2019-10-04 11:51:48 +0200
commita0f501fa5650d0b6062cc8f26b34bce11137643d (patch)
tree8e31c5ac3409d4ce48887d88d4530b88a02c2660 /alg_gamma.h
downloado3000-color-pipe-a0f501fa5650d0b6062cc8f26b34bce11137643d.tar.gz
o3000-color-pipe-a0f501fa5650d0b6062cc8f26b34bce11137643d.zip
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+/**
+* @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
+*
+* <PRE>
+* 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
+* </PRE>
+*
+*/
+
+
+/*
+ * 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]];
+ }
+}
+
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