1IM_SMUDGE(3)               Library Functions Manual               IM_SMUDGE(3)
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NAME

6       im_smudge, im_smear - filter and smudge in place
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SYNOPSIS

9       #include <vips/vips.h>
10       #include <vips/rect.h>
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12       int
13       im_smudge( im, ix, iy, r )
14       IMAGE *im;
15       int ix, iy;
16       Rect *r;
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18       int
19       im_smear( im, ix, iy, r )
20       IMAGE *im;
21       int ix, iy;
22       Rect *r;
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DESCRIPTION

25       im_smudge()  performs a low-pass filter of the pels inside rect r. Rect
26       r is clipped against the edges of the image.  im_smear()  is  not  very
27       useful.
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29       Both  these  functions  are `in place,' that is, they write directly to
30       the output image! Be very careful, you can destroy data.
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RETURN VALUE

33       All functions return 0 on success and -1 on error.
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SEE ALSO

36       im_insertplace(3), im_readpoint(3).
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39       National Gallery, 1992
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AUTHOR

42       J. Cupitt
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46                                30 October 1992                   IM_SMUDGE(3)
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