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man pages section 3: Multimedia Library Functions

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Updated: July 2017
 
 

mlib_ImageColorXYZ2RGB_Fp(3MLIB)

Name

mlib_ImageColorXYZ2RGB_Fp - XYZ to RGB color conversion

Synopsis

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

mlib_status mlib_ImageColorXYZ2RGB_Fp(mlib_image *dst,
     const mlib_image *src);

Description

The mlib_ImageColorXYZ2RGB_Fp() function performs a color space conversion from CIE XYZ to ITU-R Rec.708 RGB with D64 white point.

The source and destination images must be three-channel images.

It uses the following equation:

|R|   |cmat[0] cmat[1] cmat[2]|   |X|
|G| = |cmat[3] cmat[4] cmat[5]| * |Y|
|B|   |cmat[6] cmat[7] cmat[8]|   |Z|

where

cmat[] = { 3.240479, -1.537150, -0.498535,
          -0.969256,  1.875992,  0.041566,
           0.055648, -0.204043,  1.057311 };
src[x][y] = { X, Y, Z };
dst[x][y] = { R, G, B };

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 TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
MT-Level
MT-Safe

See Also

mlib_ImageColorConvert1(3MLIB), mlib_ImageColorConvert1_Fp(3MLIB), mlib_ImageColorRGB2XYZ(3MLIB), mlib_ImageColorRGB2XYZ_Fp(3MLIB), mlib_ImageColorRGB2YCC(3MLIB), mlib_ImageColorRGB2YCC_Fp(3MLIB), mlib_ImageColorXYZ2RGB(3MLIB), attributes(5)