Content-type: text/html Man page of mlib_ImageColorHSV2RGB_Fp

mlib_ImageColorHSV2RGB_Fp

Section: mediaLib Library Functions (3MLIB)
Updated: 12 Sep 2007
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NAME

mlib_ImageColorHSV2RGB_Fp - HSV to RGB color conversion  

SYNOPSIS

cc [ flag... ] file... -lmlib [ library... ]
#include <mlib.h>

mlib_status mlib_ImageColorHSV2RGB_Fp(mlib_image *dst,
    const mlib_image *src);

 

DESCRIPTION

The mlib_ImageColorHSV2RGB_Fp() function performs a conversion from hue/saturation/value to red/green/blue. The source and destination images must be three-channel images.

It uses the following equations:

   P = V*(1 - S)
  Q = V*(1 - S*fraction(H*6))
  T = V*(1 - S*(1 - fraction(H*6)))

  R, G, B = V, T, P    if 0   ≤ H < 1/6
  R, G, B = Q, V, P    if 1/6 ≤ H < 2/6
  R, G, B = P, V, T    if 2/6 ≤ H < 3/6
  R, G, B = P, Q, V    if 3/6 ≤ H < 4/6
  R, G, B = T, P, V    if 4/6 ≤ H < 5/6
  R, G, B = V, P, Q    if 5/6 ≤ H < 1

where 0 ≤ H < 1 and 0 ≤ S, V, P, Q, T, R, G, B ≤ 1.

For MLIB_FLOAT and MLIB_DOUBLE images, the above equations are followed verbatim. Input H component values must be limited to the [0.0, 1.0) range. Input S and V component values must be limited to the [0.0, 1.0] range.  

PARAMETERS

The function takes the following arguments:

dst

Pointer to destination image.

src

Pointer to source image.

 

RETURN VALUES

The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.  

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE

Interface StabilityCommitted

MT-Level

 

SEE ALSO

mlib_ImageColorHSV2RGB(3MLIB), mlib_ImageColorRGB2HSV(3MLIB), mlib_ImageColorRGB2HSV_Fp(3MLIB), attributes(5)


 

Index

NAME
SYNOPSIS
DESCRIPTION
PARAMETERS
RETURN VALUES
ATTRIBUTES
SEE ALSO

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Time: 02:38:08 GMT, October 02, 2010