JSci.maths.wavelet
Class FWTCoefMath

java.lang.Object
  JSci.maths.AbstractMath
      JSci.maths.wavelet.FWTCoefMath

public final class FWTCoefMath

extends AbstractMath

This class allows to do some operations on wavelet coefficients

Method Summary

static boolean	areCompatible(FWTCoef[] a)
static boolean	areCompatible(FWTCoef a, FWTCoef b)
static double	energyRatio(FWTCoef[] a, int i)
static double	entropy(FWTCoef[] a)
static double	entropy(FWTCoef[] a, int i)
static int	getJ(FWTCoef[] a)
static double	icf(FWTCoef[] a) Compute the Shannon entropy.
static double	icfVariance(FWTCoef[] a)
static double	sumEnergies(FWTCoef[] a)
static double	sumSquares(FWTCoef[] a, int i) Compute the sum of the squares of the coefficients
static double	sumVariance(FWTCoef[] a)
static double	variance(FWTCoef[] a, int i)
static double	varianceRatio(FWTCoef[] a, int i)

Methods inherited from class java.lang.Object

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

Method Detail

areCompatible

public static boolean areCompatible(FWTCoef a,
                                    FWTCoef b)

areCompatible

public static boolean areCompatible(FWTCoef[] a)

getJ

public static int getJ(FWTCoef[] a)

sumSquares

public static double sumSquares(FWTCoef[] a,
                                int i)

Compute the sum of the squares of the coefficients

variance

public static double variance(FWTCoef[] a,
                              int i)

sumEnergies

public static double sumEnergies(FWTCoef[] a)

entropy

public static double entropy(FWTCoef[] a,
                             int i)

entropy

public static double entropy(FWTCoef[] a)

sumVariance

public static double sumVariance(FWTCoef[] a)

energyRatio

public static double energyRatio(FWTCoef[] a,
                                 int i)

varianceRatio

public static double varianceRatio(FWTCoef[] a,
                                   int i)

icf

public static double icf(FWTCoef[] a)

Compute the Shannon entropy.

icfVariance

public static double icfVariance(FWTCoef[] a)