Color conversion functions

Detailed Description

The functions in this section are used in color conversion between various color spaces.

Functions
void	rgb2yiq (unsigned char *R, unsigned char *G, unsigned char *B, short *Y, short *I, short *Q)
	RGB to YIQ color space conversion.
void	yiq2rgb (short *Y, short *I, short *Q, unsigned char *R, unsigned char *G, unsigned char *B)
	YIQ to RGB color space conversion.
void	rgb2hsl (float r, float g, float b, float *h, float *s, float *l)
	RGB to HSL color space conversion.
void	hsl2rgb (float h, float s, float l, float *r, float *g, float *b)
	HSL to RGB color space conversion.
void	rgb2hsv (unsigned char R, unsigned char G, unsigned char B, unsigned char *H, unsigned char *S, unsigned char *V)
	RGB to HSV color space conversion.
void	hsv2rgb (unsigned char H, unsigned char S, unsigned char V, unsigned char *R, unsigned char *G, unsigned char *B)
	HSV to RGB color space conversion.
void	rgb2ycbcr (unsigned char R, unsigned char G, unsigned char B, unsigned char *y, unsigned char *cb, unsigned char *cr)
	RGB to YCbCr color space conversion.
void	ycbcr2rgb (unsigned char y, unsigned char Cb, unsigned char Cr, unsigned char *R, unsigned char *G, unsigned char *B)
	YCbCr to RGB color space conversion.
void	rgb2cmyk (unsigned char R, unsigned char G, unsigned char B, float *c, float *m, float *y, float *k)
	RGB to CMYK color space conversion.
void	cmyk2rgb (float c, float m, float y, float k, unsigned char *R, unsigned char *G, unsigned char *B)
	CMYK to RGB color space conversion.
void	lab2rgb (double L, double a, double b, unsigned char *R, unsigned char *G, unsigned char *B)
	CIELAB to RGB color space conversion.
void	rgb2lab (unsigned char R, unsigned char G, unsigned char B, double *L, double *a, double *b)
	RGB to CIELAB color space conversion.

Function Documentation

rgb2yiq()

void rgb2yiq	(	unsigned char *	R,
		unsigned char *	G,
		unsigned char *	B,
		short *	Y,
		short *	I,
		short *	Q )

RGB to YIQ color space conversion.

yiq2rgb()

void yiq2rgb	(	short *	Y,
		short *	I,
		short *	Q,
		unsigned char *	R,
		unsigned char *	G,
		unsigned char *	B )

YIQ to RGB color space conversion.

rgb2hsl()

void rgb2hsl	(	float	r,
		float	g,
		float	b,
		float *	h,
		float *	s,
		float *	l )

RGB to HSL color space conversion.

hsl2rgb()

void hsl2rgb	(	float	h,
		float	s,
		float	l,
		float *	r,
		float *	g,
		float *	b )

HSL to RGB color space conversion.

rgb2hsv()

void rgb2hsv	(	unsigned char	R,
		unsigned char	G,
		unsigned char	B,
		unsigned char *	H,
		unsigned char *	S,
		unsigned char *	V )

RGB to HSV color space conversion.

hsv2rgb()

void hsv2rgb	(	unsigned char	H,
		unsigned char	S,
		unsigned char	V,
		unsigned char *	R,
		unsigned char *	G,
		unsigned char *	B )

HSV to RGB color space conversion.

rgb2ycbcr()

void rgb2ycbcr	(	unsigned char	R,
		unsigned char	G,
		unsigned char	B,
		unsigned char *	y,
		unsigned char *	cb,
		unsigned char *	cr )

RGB to YCbCr color space conversion.

ycbcr2rgb()

void ycbcr2rgb	(	unsigned char	y,
		unsigned char	Cb,
		unsigned char	Cr,
		unsigned char *	R,
		unsigned char *	G,
		unsigned char *	B )

YCbCr to RGB color space conversion.

rgb2cmyk()

void rgb2cmyk	(	unsigned char	R,
		unsigned char	G,
		unsigned char	B,
		float *	c,
		float *	m,
		float *	y,
		float *	k )

RGB to CMYK color space conversion.

cmyk2rgb()

void cmyk2rgb	(	float	c,
		float	m,
		float	y,
		float	k,
		unsigned char *	R,
		unsigned char *	G,
		unsigned char *	B )

CMYK to RGB color space conversion.

lab2rgb()

void lab2rgb	(	double	L,
		double	a,
		double	b,
		unsigned char *	R,
		unsigned char *	G,
		unsigned char *	B )

CIELAB to RGB color space conversion.

rgb2lab()

void rgb2lab	(	unsigned char	R,
		unsigned char	G,
		unsigned char	B,
		double *	L,
		double *	a,
		double *	b )

RGB to CIELAB color space conversion.