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THRESUNIERR

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

NAME

thresUniErr - Uniform Error Threshold

SYNTAX

#include <xite/threshold.h>

int thresUniErr( IBAND band );

DESCRIPTION

thresUniErrcalculatesthe threshold value needed to threshold theimage according to the uniform error thresholding metodas described in Dunn & Harwood & Davis.

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

REFERENCE

S. M. Dunn & D. Harwood & L. S. Davis: "Local Estimationof the Uniform Error Threshold" IEEE Trans. on PAMI,Vol PAMI-6, No 6, Nov 1984.

RETURN VALUE

The threshold value. Pixel values up to, and including,the return value, is below the threshold.Returns -1 if bad pixel type, accepts ony UNS_BYTE pixels.

BUGS

It only works well on images whith large objects.

AUTHOR

Olav Borgli, BLAB, ifi, UiO

ID

$Id: thresUniErr.c,v 1.20 1996/11/08 14:06:12 svein Exp $

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