Package UI

Class NeuQuant

java.lang.Object

UI.NeuQuant

public class NeuQuant
extends java.lang.Object

NeuQuant is a class that implements the NeuQuant algorithm for color quantization. It is used to reduce the number of colors in an image while preserving its visual quality. The algorithm is based on a neural network approach and is designed to be efficient and fast.

Field Summary

Fields

Modifier and Type	Field	Description
protected static int	alphabiasshift
protected int	alphadec
protected static int	alpharadbias
protected static int	alpharadbshift
protected static int	beta
protected static int	betagamma
protected static int	betashift
protected int[]	bias
protected int[]	freq
protected static int	gamma
protected static int	gammashift
protected static int	initalpha
protected static int	initrad
protected static int	initradius
protected static int	intbias
protected static int	intbiasshift
protected int	lengthcount
protected static int	maxnetpos
protected static int	minpicturebytes
protected static int	ncycles
protected static int	netbiasshift
protected int[]	netindex
protected static int	netsize
protected int[][]	network
protected static int	prime1
protected static int	prime2
protected static int	prime3
protected static int	prime4
protected static int	radbias
protected static int	radbiasshift
protected static int	radiusbias
protected static int	radiusbiasshift
protected static int	radiusdec
protected int[]	radpower
protected int	samplefac
protected byte[]	thepicture

Constructor Summary

Constructors

Constructor	Description
NeuQuant(byte[] thepic, int len, int sample)

Method Summary

Modifier and Type	Method	Description
protected void	alterneigh(int rad, int i, int b, int g, int r)
protected void	altersingle(int alpha, int i, int b, int g, int r)
byte[]	colorMap()
protected int	contest(int b, int g, int r)
void	inxbuild()
void	learn()
int	map(int b, int g, int r)
byte[]	process()
void	unbiasnet()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

netsize

protected static final int netsize

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Constant Field Values

prime1

protected static final int prime1

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Constant Field Values

prime2

protected static final int prime2

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Constant Field Values

prime3

protected static final int prime3

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Constant Field Values

prime4

protected static final int prime4

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Constant Field Values

minpicturebytes

protected static final int minpicturebytes

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Constant Field Values

maxnetpos

protected static final int maxnetpos

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Constant Field Values

netbiasshift

protected static final int netbiasshift

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Constant Field Values

ncycles

protected static final int ncycles

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Constant Field Values

intbiasshift

protected static final int intbiasshift

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Constant Field Values

intbias

protected static final int intbias

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Constant Field Values

gammashift

protected static final int gammashift

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Constant Field Values

gamma

protected static final int gamma

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Constant Field Values

betashift

protected static final int betashift

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Constant Field Values

beta

protected static final int beta

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Constant Field Values

betagamma

protected static final int betagamma

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Constant Field Values

initrad

protected static final int initrad

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Constant Field Values

radiusbiasshift

protected static final int radiusbiasshift

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Constant Field Values

radiusbias

protected static final int radiusbias

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Constant Field Values

initradius

protected static final int initradius

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Constant Field Values

radiusdec

protected static final int radiusdec

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Constant Field Values

alphabiasshift

protected static final int alphabiasshift

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Constant Field Values

initalpha

protected static final int initalpha

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Constant Field Values

alphadec

protected int alphadec

radbiasshift

protected static final int radbiasshift

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Constant Field Values

radbias

protected static final int radbias

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Constant Field Values

alpharadbshift

protected static final int alpharadbshift

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Constant Field Values

alpharadbias

protected static final int alpharadbias

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Constant Field Values

thepicture

protected byte[] thepicture

lengthcount

protected int lengthcount

samplefac

protected int samplefac

network

protected int[][] network

netindex

protected int[] netindex

bias

protected int[] bias

freq

protected int[] freq

radpower

protected int[] radpower

Constructor Detail

NeuQuant

public NeuQuant(byte[] thepic,
                int len,
                int sample)

Method Detail

colorMap

public byte[] colorMap()

inxbuild

public void inxbuild()

learn

public void learn()

map

public int map(int b,
               int g,
               int r)

process

public byte[] process()

unbiasnet

public void unbiasnet()

alterneigh

protected void alterneigh(int rad,
                          int i,
                          int b,
                          int g,
                          int r)

altersingle

protected void altersingle(int alpha,
                           int i,
                           int b,
                           int g,
                           int r)

contest

protected int contest(int b,
                      int g,
                      int r)