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

6       mlib_ImageXProj - image X projection
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SYNOPSIS

9       cc [ flag... ] file... -lmlib [ library... ]
10       #include <mlib.h>
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12       mlib_status mlib_ImageXProj(mlib_d64 *xproj, const mlib_image *img);
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DESCRIPTION

16       The  mlib_ImageXProj()  function computes the sum of the pixels in each
17       column of the source image.
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20       The image must be a single-channel image.
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23       It uses the following equation:
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25                    h-1
26         xproj[x] = SUM img[x][y][0]
27                    y=0
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31       where x = 0, 1, ..., w - 1.
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PARAMETERS

34       The function takes the following arguments:
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36       xproj    Pointer to X-projection vector, where length is equal  to  the
37                number  of  columns  in  the source image (in other words, the
38                image width).
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41       img      Pointer to an input image.
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RETURN VALUES

45       The function returns MLIB_SUCCESS if successful. Otherwise  it  returns
46       MLIB_FAILURE.
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ATTRIBUTES

49       See attributes(5) for descriptions of the following attributes:
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54       ┌─────────────────────────────┬─────────────────────────────┐
55       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
56       ├─────────────────────────────┼─────────────────────────────┤
57       │Interface Stability          │Committed                    │
58       ├─────────────────────────────┼─────────────────────────────┤
59       │MT-Level                     │MT-Safe                      │
60       └─────────────────────────────┴─────────────────────────────┘
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SEE ALSO

63       mlib_ImageXProj_Fp(3MLIB),                      mlib_ImageYProj(3MLIB),
64       mlib_ImageYProj_Fp(3MLIB), attributes(5)
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68SunOS 5.11                        2 Mar 2007            mlib_ImageXProj(3MLIB)
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