color_conversions.C File Reference

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Detailed Description

low-level routines for colorspace conversions

Definition in file color_conversions.C.

#include "Image/color_conversions.H"
#include "Image/Image.H"
#include "Image/Pixels.H"
#include "Image/colorDefs.H"
#include "Util/Promotions.H"
#include "rutz/trace.h"
#include <pthread.h>

Include dependency graph for color_conversions.C:

Go to the source code of this file.

Defines
#define	Y_R_IN   0.257
#define	Y_G_IN   0.504
#define	Y_B_IN   0.098
#define	Y_ADD_IN   16
#define	U_R_IN   0.148
#define	U_G_IN   0.291
#define	U_B_IN   0.439
#define	U_ADD_IN   128
#define	V_R_IN   0.439
#define	V_G_IN   0.368
#define	V_B_IN   0.071
#define	V_ADD_IN   128
#define	SCALEBITS_IN   8
#define	FIX_IN(x)   (int((x) * (1L<<SCALEBITS_IN) + 0.5))
Functions
void	colorspace_init ()
void	yv12_to_rgb24_c (unsigned char *dst, int dst_stride, const unsigned char *y_src, const unsigned char *u_src, const unsigned char *v_src, int y_stride, int uv_stride, int width, int height)
void	rgb24_to_yv12_c (const Image< PixRGB< byte > > &img, byte *const y_out, byte *u_out, byte *v_out)
void	yuv422p_to_rgb24_c (byte *dst, const int w, const int h, const byte *yptr, const byte *uptr, const byte *vptr)
void	yuv422_to_rgb24_c (byte *dst, const int w, const int h, const byte *yuv422ptr, const bool byteswap)
Variables
const int	BITS_OUT = 16
int	RGB_Y_tab [256]
int	B_U_tab [256]
int	G_U_tab [256]
int	G_V_tab [256]
int	R_V_tab [256]
pthread_once_t	colorspace_init_once = PTHREAD_ONCE_INIT

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