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GLCM

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

NAME

glcm - Computes Grey Level Cooccurrence Matrix

SYNTAX

#include <xite/texture.h>

int glcm( IBAND input, ID_BAND output, int dx,
int dy, int nogreylevel );

DESCRIPTION

Computes the Grey Level Cooccurence Matrix of an image.The angle and the displacement will be computed from thegiven dxand dy.dxand dycan be negative. All thegreylevel values (< nogreylevels)on the input band willbe increased by one on the output band coordinate system.It means that if there is a greylevel combination (0,1) on theinput band then the index (1,2) on the output band willbe increased.

RESTRICTIONS

inputmust have pixel type unsigned byte. outputmusthave pixel type double.

RETURN VALUE

0 => ok
1 => there are grey levels > "nogreylevel" in
the input band
2 => bad pixel type in input
3 => output is not integer type
4 => horizontal size of output is less than "nogreylevel"
5 => vertical size of output is less than "nogreylevel"

REFERENCE

R. M. Haralick, K. Shanmugam, and I. Dinstein,
"Textural Features for Image Classification",
IEEE Trans. on Systems, Man and Cybernetics,
Vol. SMC-3, pp. 610-621, 1973.

AUTHOR

Yogesan K., BLAB, Ifi, UiO

ID

$Id: glcm.c,v 1.16 1997/01/14 13:02:18 svein Exp $

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