im_mpercent3
Find threshold corresponding to a percentage of an image values
Usage
#include <vips/vips.h>
int im_mpercent( in, percent, thresh )
IMAGE *in;
int percent;
int *thresh;
Overview
im_mpercent() returns (through the thresh parameter) the threshold above which there are percent values of the input image. If for example percent=.1, the number of pels of the input image with values greater than the returned int will correspond to 10% of all pels of the image.
The function is applied on one band FMTUCHAR images only. It can be used in order to threshold the scaled result of a filtering operation.
Return value
The function returns 0 on success and -1 on error.
Releases
Unchanged in 4 releases since Debian 3.1 (Sarge).