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/**
* @file color.h
* @brief color utility function definition
* @author Patrick Roth - roth@stettbacher.ch
* @copyright 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>
*
*/
#ifndef _COLOR_H
#define _COLOR_H
#include "color_pipe.h"
#define RGB2YUV_COEFF_Y_RED 0.299 ///< RGB to YUV conversion coefficient for Y-Channel: red
#define RGB2YUV_COEFF_Y_GREEN 0.587 ///< RGB to YUV conversion coefficient for Y-Channel: green
#define RGB2YUV_COEFF_Y_BLUE 0.114 ///< RGB to YUV conversion coefficient for Y-Channel: blue
#define RGB2YUV_COEFF_U_RED (-0.299) ///< RGB to YUV conversion coefficient for U-Channel: red
#define RGB2YUV_COEFF_U_GREEN (-0.587) ///< RGB to YUV conversion coefficient for U-Channel: green
#define RGB2YUV_COEFF_U_BLUE 0.886 ///< RGB to YUV conversion coefficient for U-Channel: blue
#define RGB2YUV_COEFF_V_RED 0.701 ///< RGB to YUV conversion coefficient for V-Channel: red
#define RGB2YUV_COEFF_V_GREEN (-0.587) ///< RGB to YUV conversion coefficient for V-Channel: green
#define RGB2YUV_COEFF_V_BLUE (-0.114) ///< RGB to YUV conversion coefficient for V-Channel: blue
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
int color_rgb_to_yuv(int16_t *img_yuv, const void *img_rgb, const int height, const int width, const int bit_channel);
int color_yuv_to_rgb(void *img_rgb, const int16_t *img_yuv, const int height, const int width, const int bit_channel);
int color_calib(struct color_calib_data_t *color_calib);
#if defined(__cplusplus) || defined(c_plusplus)
} // extern "C"
#endif
#endif // _COLOR_H
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