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LITSNN

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

NAME

litSnn - texture measure, combination of lit and snn

SYNTAX

#include <xite/snn.h>

int litSnn( IBAND input, IBAND output, int dp,
int dx, int dy );

DESCRIPTION

Combination of lit - local information transform -and snn - symmetric nearest neighbour. Only thosepixels selected by the snn filter are included inthe counting of pixels within the pixel valueinterval [centerpixel-dp..centerpixel+dp]. Theoutput pixel value is the number of such pixelswithin the window. Uses a rectangular processingwindow of size dx* dy.

dpis the delta pixel value.

RESTRICTIONS

inputand outputmust have pixel type unsigned byte.Even values of dxand dyare increased by one.dx,dyand dpshould be positive.

RETURN VALUE

0 => ok
1 => Bad input pixel type
2 => Bad output pixel type
3 => Bad dx value (less than 0)
4 => Bad dy value (less than 0)
5 => Bad dp value (less than 0)

AUTHOR

Tor Lřnnestad, BLAB, Ifi, UiO

ID

$Id: litSnn.c,v 1.23 1997/01/10 19:42:34 svein Exp $

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