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

6       im_mpercent  - find threshold corresponding to a percentage of an image
7       values
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SYNOPSIS

10       #include <vips/vips.h>
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12       int im_mpercent( in, percent, thresh )
13       IMAGE *in;
14       int percent;
15       int *thresh;
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DESCRIPTION

19       im_mpercent() returns (through  the  thresh  parameter)  the  threshold
20       above which there are percent values of the input image. If for example
21       percent=.1, the number of pels of the input image with  values  greater
22       than the returned int will correspond to 10% of all pels of the image.
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24       The  function  is  applied on one band FMTUCHAR images only.  It can be
25       used in order to threshold the scaled result of a filtering operation.
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RETURN VALUE

28       The function returns 0 on success and -1 on error.
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SEE ALSO

31       im_conv(3), im_zerox(3).
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34       N. Dessipris
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AUTHOR

37       N. Dessipris - 14/05/1991
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41                                  14 May 1991                   IM_MPERCENT(3)
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