1mlib_ImageColorRGB2XYZ(3MLImBe)diaLib Library Functiomnlsib_ImageColorRGB2XYZ(3MLIB)
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6 mlib_ImageColorRGB2XYZ - RGB to XYZ color conversion
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9 cc [ flag... ] file... -lmlib [ library... ]
10 #include <mlib.h>
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12 mlib_status mlib_ImageColorRGB2XYZ(mlib_image *dst, const mlib_image *src);
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16 The mlib_ImageColorRGB2XYZ() function performs a color space conversion
17 from ITU-R Rec.708 RGB with D64 white point to CIE XYZ.
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20 The source and destination images must be three-channel images.
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23 It uses the following equation:
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25 |X| |cmat[0] cmat[1] cmat[2]| |R|
26 |Y| = |cmat[3] cmat[4] cmat[5]| * |G|
27 |Z| |cmat[6] cmat[7] cmat[8]| |B|
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31 where
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33 cmat[] = { 0.412453, 0.357580, 0.180423,
34 0.212671, 0.715160, 0.072169,
35 0.019334, 0.119193, 0.950227 };
36 src[x][y] = { R, G, B };
37 dst[x][y] = { X, Y, Z };
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41 The function takes the following arguments:
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43 dst Pointer to destination image.
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46 src Pointer to source image.
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50 The function returns MLIB_SUCCESS if successful. Otherwise it returns
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54 See attributes(5) for descriptions of the following attributes:
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59 ┌─────────────────────────────┬─────────────────────────────┐
60 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
61 ├─────────────────────────────┼─────────────────────────────┤
62 │Interface Stability │Committed │
63 ├─────────────────────────────┼─────────────────────────────┤
64 │MT-Level │MT-Safe │
65 └─────────────────────────────┴─────────────────────────────┘
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68 mlib_ImageColorConvert1(3MLIB), mlib_ImageColorConvert1_Fp(3MLIB),
69 mlib_ImageColorRGB2XYZ_Fp(3MLIB), mlib_ImageColorXYZ2RGB(3MLIB),
70 mlib_ImageColorXYZ2RGB_Fp(3MLIB), mlib_ImageColorYCC2RGB(3MLIB),
71 mlib_ImageColorYCC2RGB_Fp(3MLIB), attributes(5)
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75SunOS 5.11 2 Mar 2007 mlib_ImageColorRGB2XYZ(3MLIB)