1mlib_ImageDivShift(3MLIB) mediaLib Library Functions mlib_ImageDivShift(3MLIB)
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NAME

6       mlib_ImageDivShift - division with shifting
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SYNOPSIS

9       cc [ flag... ] file... -lmlib [ library... ]
10       #include <mlib.h>
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12       mlib_status mlib_ImageDivShift(mlib_image *dst, const mlib_image *src1,
13            const mlib_image *src2, mlib_s32 shift);
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DESCRIPTION

17       The  mlib_ImageDivShift() function divides the second source image into
18       the first source image on a pixel-by-pixel basis. It scales the  result
19       by  a  left  shift  and writes the result to the destination image on a
20       pixel-by-pixel basis.
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23       It uses the following equation:
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25         dst[x][y][i] = src1[x][y][i] / src2[x][y][i] * 2**shift
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29       In the case of src2[x][y][i] = 0,
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31         dst[x][y][i] = 0              if src1[x][y][i] = 0
32         dst[x][y][i] = DATA_TYPE_MAX  if src1[x][y][i] > 0
33         dst[x][y][i] = DATA_TYPE_MIN  if src1[x][y][i] < 0
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37       where DATA_TYPE is MLIB_U8, MLIB_S16,  MLIB_U16,  or  MLIB_S32  for  an
38       image  of type MLIB_BYTE, MLIB_SHORT, MLIB_USHORT, or MLIB_INT, respec‐
39       tively.
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PARAMETERS

42       The function takes the following arguments:
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44       dst      Pointer to destination image.
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47       src1     Pointer to first source image.
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50       src2     Pointer to second source image.
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53       shift    Left shifting factor. 0 ≤ shift ≤ 31.
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RETURN VALUES

57       The function returns MLIB_SUCCESS if successful. Otherwise  it  returns
58       MLIB_FAILURE.
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ATTRIBUTES

61       See attributes(5) for descriptions of the following attributes:
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66       ┌─────────────────────────────┬─────────────────────────────┐
67       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
68       ├─────────────────────────────┼─────────────────────────────┤
69       │Interface Stability          │Committed                    │
70       ├─────────────────────────────┼─────────────────────────────┤
71       │MT-Level                     │MT-Safe                      │
72       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

75       mlib_ImageDivShift1_Inp(3MLIB),         mlib_ImageDivShift2_Inp(3MLIB),
76       attributes(5)
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80SunOS 5.11                        2 Mar 2007         mlib_ImageDivShift(3MLIB)
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