1mlib_ImageScale_Fp_Inp(3MLImBe)diaLib Library Functiomnlsib_ImageScale_Fp_Inp(3MLIB)
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6 mlib_ImageScale_Fp_Inp - linear scaling, in place
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9 cc [ flag... ] file... -lmlib [ library... ]
10 #include <mlib.h>
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12 mlib_status mlib_ImageScale_Fp_Inp(mlib_image *srcdst,
13 const mlib_d64 *alpha, const mlib_d64 *beta);
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17 The mlib_ImageScale_Fp_Inp() function performs a floating-point, in-
18 place linear scaling on the pixels of the source image by multiplying
19 the data by a scale factor, shifting, and then adding an offset.
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22 The following equation is used:
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24 srcdst[x][y][i] = srcdst[x][y][i] * alpha[i] + beta[i]
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28 If the result of the operation underflows/overflows the minimum/maximum
29 value supported by the destination image, then it will be clamped to
30 the minimum/maximum value respectively.
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33 The image can be of type MLIB_FLOAT or MLIB_DOUBLE.
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36 The function takes the following arguments:
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38 srcdst Pointer to source and destination image.
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41 alpha Scaling factor. alpha[i] contains the scaling factor for
42 channel i.
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45 beta Offset value. beta[i] contains the offset for channel i.
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49 The function returns MLIB_SUCCESS if successful. Otherwise it returns
50 MLIB_FAILURE.
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53 See attributes(5) for descriptions of the following attributes:
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58 ┌─────────────────────────────┬─────────────────────────────┐
59 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
60 ├─────────────────────────────┼─────────────────────────────┤
61 │Interface Stability │Committed │
62 ├─────────────────────────────┼─────────────────────────────┤
63 │MT-Level │MT-Safe │
64 └─────────────────────────────┴─────────────────────────────┘
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67 mlib_ImageScale(3MLIB), mlib_ImageScale_Fp(3MLIB),
68 mlib_ImageScale_Inp(3MLIB), mlib_ImageScale2(3MLIB),
69 mlib_ImageScale2_Inp(3MLIB), attributes(5)
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73SunOS 5.11 2 Mar 2007 mlib_ImageScale_Fp_Inp(3MLIB)