Package com.wf.captcha.utils

Class Quant

java.lang.Object

com.wf.captcha.utils.Quant

public class Quant
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
protected static final int	ALPHABIASSHIFT
protected int	alphadec
protected static final int	ALPHARADBIAS
protected static final int	ALPHARADBSHIFT
protected static final int	BETA
protected static final int	BETAGAMMA
protected static final int	BETASHIFT
protected int[]	bias
protected int[]	freq
protected static final int	GAMMA	gamma = 1024
protected static final int	GAMMASHIFT
protected static final int	INITALPHA
protected static final int	INITRAD
protected static final int	INITRADIUS
protected static final int	INTBIAS
protected static final int	INTBIASSHIFT	defs for freq and bias.
protected int	lengthcount
protected static final int	MAX_NETPOS
protected static final int	MIN_PICTURE_BYTES
protected static final int	NCYCLES	no. of learning cycles
protected static final int	NET_BIAS_SHIFT	bias for colour values
protected static final int	NET_SIZE	number of colours used
protected int[]	netindex
protected int[][]	network
protected static final int	PRIME_1	four primes near 500 - assume no image has a length so.
protected static final int	PRIME_2
protected static final int	PRIME_3
protected static final int	PRIME_4
protected static final int	RADBIAS
protected static final int	RADBIASSHIFT
protected static final int	RADIUSBIAS
protected static final int	RADIUSBIASSHIFT
protected static final int	RADIUSDEC
protected int[]	radpower
protected int	samplefac
protected byte[]	thepicture

Constructor Summary

Constructors

Constructor	Description
Quant(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 Details

NET_SIZE

protected static final int NET_SIZE

number of colours used

See Also:

• Constant Field Values

PRIME_1

protected static final int PRIME_1

four primes near 500 - assume no image has a length so. large that it is divisible by all four primes

See Also:

• Constant Field Values

PRIME_2

protected static final int PRIME_2

See Also:

• Constant Field Values

PRIME_3

protected static final int PRIME_3

See Also:

• Constant Field Values

PRIME_4

protected static final int PRIME_4

See Also:

• Constant Field Values

MIN_PICTURE_BYTES

protected static final int MIN_PICTURE_BYTES

See Also:

• Constant Field Values

MAX_NETPOS

protected static final int MAX_NETPOS

See Also:

• Constant Field Values

NET_BIAS_SHIFT

protected static final int NET_BIAS_SHIFT

bias for colour values

See Also:

• Constant Field Values

NCYCLES

protected static final int NCYCLES

no. of learning cycles

See Also:

• Constant Field Values

INTBIASSHIFT

protected static final int INTBIASSHIFT

defs for freq and bias. bias for fractions

See Also:

• Constant Field Values

INTBIAS

protected static final int INTBIAS

See Also:

• Constant Field Values

BETASHIFT

protected static final int BETASHIFT

See Also:

• Constant Field Values

GAMMASHIFT

protected static final int GAMMASHIFT

See Also:

• Constant Field Values

BETA

protected static final int BETA

See Also:

• Constant Field Values

BETAGAMMA

protected static final int BETAGAMMA

See Also:

• Constant Field Values

GAMMA

protected static final int GAMMA

gamma = 1024

See Also:

• Constant Field Values

INITRAD

protected static final int INITRAD

See Also:

• Constant Field Values

RADIUSBIASSHIFT

protected static final int RADIUSBIASSHIFT

See Also:

• Constant Field Values

RADIUSBIAS

protected static final int RADIUSBIAS

See Also:

• Constant Field Values

INITRADIUS

protected static final int INITRADIUS

See Also:

• Constant Field Values

RADIUSDEC

protected static final int RADIUSDEC

See Also:

• Constant Field Values

ALPHABIASSHIFT

protected static final int ALPHABIASSHIFT

See Also:

• Constant Field Values

INITALPHA

protected static final int INITALPHA

See Also:

• Constant Field Values

RADBIASSHIFT

protected static final int RADBIASSHIFT

See Also:

• Constant Field Values

RADBIAS

protected static final int RADBIAS

See Also:

• Constant Field Values

ALPHARADBSHIFT

protected static final int ALPHARADBSHIFT

See Also:

• Constant Field Values

ALPHARADBIAS

protected static final int ALPHARADBIAS

See Also:

• Constant Field Values

alphadec

protected int alphadec

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 Details

Quant

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

Method Details

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)