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GLCMPARAMETER

Section: User Commands (1)
Updated: 16 Mar 1998
Index

NAME

glcmParameter - Computes different features from theGrey Level Co-occurrence Matrix (GLCM)

SYNTAX

glcmParameter [<option>...] <inimage>
or
glcmParameter -mkglcm [<option>...] <inimage> <dx> <dy>
[<numberofgreylevels>]

DESCRIPTION

Computes nine features from the Grey Level CooccurenceMatrix of an image. Input can be a GLC-matrix (image)or a normal image. If it is a normal image, then theprogram will compute the GLC-matrix before computingthe features. The user must specify this by giving theoption -mkglcmand values for dx,dyandnumberofgreylevels.

In the absence of options for what parameters to compute,all the parameters will be computed.

dxis horizontal distance (-50 <= dx <= 50), dyisvertical distance (-50 <= dy <= 50). Pixels less thannumberofgreylevelswill be considered. The default valueis 256.

OPTIONS

-asm

Angular Second Moment of a GLCM.

-cont

Contrast of a GLCM.

-corr

Correlation of a GLCM.

-idm

Inverse Difference Moment of a GLCM.

-entrop

Entropy of a GLCM.

-var

Variance of a GLCM.

-prom

Cluster Prominence of a GLCM.

-shade

Cluster Shade of a GLCM.

-diag

Diagonal Moment of a GLCM.

-h

Print a header for the output.

-mkglcm

Input is an image, a GLC-Matrix must be computed.

-heq

Histogram equalization of the input image. The number ofgrey levels will be set to numberofgreylevels.

AUTHOR

Yogesan K., BLAB, Ifi, UiO

EXAMPLES

glcmParameter -mkglcm mona.img 1 1 100
glcmParameter -mkglcm -heq mona.img 1 1 100
glcmParameter -mkglcm mona.img 1 1
glcmParameter -mkglcm -heq mona.img 1 1
glcmParameter -prom -inert -corr mona.glcm
glcmParameter mona.glcm
glcmParameter -h -prom -inert -corr mona.glcm
glcmParameter -mkglcm -h -prom -inert -corr mona.img 1 1
glcmParameter -mkglcm -h -heq -prom -mona.img 1 1 100

ID

$Id: glcmParameter.c,v 1.26 1997/01/14 13:02:19 svein Exp $

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