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CLASSIFYNEAREST

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

NAME

classifyNearest - classify to nearest class

SYNTAX

#include <xite/classification.h>

int classifyNearest( IMAGE input, IBAND oldres,
IBAND newres, float* means[], int k,
int metric, int* changes );

DESCRIPTION

Classifies the input image to the nearest of thespecified class means.

inputmay be multi band image.oldresis previous classification result.newresis the classification result.meansrefers to the class mean vectors.kis the number of classes.metricmust be one of
   1 => Euclidian distance
   2 => City block distance
   3 => Chess distance

changesis the number of changes from previousclassification.

Identical arguments may be given for oldresand newres.

RESTRICTIONS

input,oldresand newresmust have pixel type unsignedbyte. meansmust be an array of pointers to arraysof floats, indexable on the interval
means[0..k-1][1..Inbands(input)].

RETURN VALUE

0 => ok
1 => bad pixel type in input image
2 => bad pixel type in oldres
3 => bad pixel type in newres
4 => bad k value (less than 2)
5 => unknown metric

AUTHOR

Tor Lřnnestad, BLAB, Ifi, UiO.

ID

$Id: kMeansCluster.c,v 1.25 1997/01/29 10:38:27 svein Exp $

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