1mlib_ImageYProj(3MLIB) mediaLib Library Functions mlib_ImageYProj(3MLIB)
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6 mlib_ImageYProj - image Y projection
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9 cc [ flag... ] file... -lmlib [ library... ]
10 #include <mlib.h>
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12 mlib_status mlib_ImageYProj(mlib_d64 *yproj, const mlib_image *img);
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16 The mlib_ImageYProj() function computes the sum of the pixels in each
17 row 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 w-1
26 yproj[y] = SUM img[x][y][0]
27 x=0
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31 where y = 0, 1, ..., h - 1.
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34 The function takes the following arguments:
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36 yproj Pointer to Y-projection vector, where length is equal to the
37 number of rows in the source image (in other words, the image
38 height).
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41 img Pointer to an input image.
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45 The function returns MLIB_SUCCESS if successful. Otherwise it returns
46 MLIB_FAILURE.
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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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63 mlib_ImageXProj(3MLIB), mlib_ImageXProj_Fp(3MLIB),
64 mlib_ImageYProj_Fp(3MLIB), attributes(5)
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68SunOS 5.11 2 Mar 2007 mlib_ImageYProj(3MLIB)