MAN page from Mandrake Other XITE-3.3-3.i386.rpm

THRESSIGMA

Section: C Library Functions (3)
Updated: 16 Mar 1998
Index

NAME

thresSigma - threshold at fraction of standard deviation

SYNTAX

#include <xite/threshold.h>

int thresxsigma(h, x)
histogram h;
double x;

int thresSigma( histogram h, double x );

DESCRIPTION

thresSigmacalculates the threshold value by findingthe mean (mu) and the standard deviation (sigma)of the image, and then finding the threshold bythe formula:

t = mu + (x * sigma)

The actual thresholding is not performed, see theroutine "threshold".

RETURN VALUE

The threshold value. Pixel values up to, and including,the return value, is below the threshold.

AUTHOR

Olav Borgli, BLAB, ifi, UiO

ID

$Id: thresSigma.c,v 1.20 1996/11/08 14:06:11 svein Exp $

This document was created byman2html,using the manual pages.