1mlib_ImageColorYCC2RGB_Fp(3mMeLdIiBa)Lib Library Funcmtliiobn_sImageColorYCC2RGB_Fp(3MLIB)
2
3
4

NAME

6       mlib_ImageColorYCC2RGB_Fp - YCC to RGB color conversion
7

SYNOPSIS

9       cc [ flag... ] file... -lmlib [ library... ]
10       #include <mlib.h>
11
12       mlib_status mlib_ImageColorYCC2RGB_Fp(mlib_image *dst,
13            const mlib_image *src);
14
15

DESCRIPTION

17       The mlib_ImageColorYCC2RGB_Fp() function performs a color space conver‐
18       sion from ITU-R Rec.601 Y'CbCr to computer R'G'B'.
19
20
21       The source and destination images must be three-channel images.
22
23
24       It uses the following equation:
25
26         |R'|   |cmat[0] cmat[1] cmat[2]|   |Y'|   |offset[0]|
27         |G'| = |cmat[3] cmat[4] cmat[5]| * |Cb| + |offset[1]|
28         |B'|   |cmat[6] cmat[7] cmat[8]|   |Cr|   |offset[2]|
29
30
31
32       where
33
34         cmat[] = { 298.082/256,    0.000/256,  408.583/256,
35                    298.082/256, -100.291/256, -208.120/256,
36                    298.082/256,  516.411/256,    0.000/256 };
37         offset[] = { -222.922, 135.575, -276.836 };
38         src[x][y] = { Y', Cb, Cr };
39         dst[x][y] = { R', G', B' };
40
41

PARAMETERS

43       The function takes the following arguments:
44
45       dst    Pointer to destination image.
46
47
48       src    Pointer to source image.
49
50

RETURN VALUES

52       The function returns MLIB_SUCCESS if successful. Otherwise  it  returns
53       MLIB_FAILURE.
54

ATTRIBUTES

56       See attributes(5) for descriptions of the following attributes:
57
58
59
60
61       ┌─────────────────────────────┬─────────────────────────────┐
62       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
63       ├─────────────────────────────┼─────────────────────────────┤
64       │Interface Stability          │Committed                    │
65       ├─────────────────────────────┼─────────────────────────────┤
66       │MT-Level                     │MT-Safe                      │
67       └─────────────────────────────┴─────────────────────────────┘
68

SEE ALSO

70       mlib_ImageColorConvert2(3MLIB),      mlib_ImageColorConvert2_Fp(3MLIB),
71       mlib_ImageColorRGB2XYZ(3MLIB),        mlib_ImageColorRGB2XYZ_Fp(3MLIB),
72       mlib_ImageColorRGB2YCC(3MLIB),        mlib_ImageColorRGB2YCC_Fp(3MLIB),
73       mlib_ImageColorYCC2RGB(3MLIB), attributes(5)
74
75
76
77SunOS 5.11                        2 Mar 2007  mlib_ImageColorYCC2RGB_Fp(3MLIB)
Impressum