uk.ac.ed.ph.signal
Class Noise

java.lang.Object
  uk.ac.ed.ph.signal.Noise

public class Noise
extends Object

Class to add noise to signals and images

Constructor Summary

Noise()

Method Summary

static void	addGaussianDependantNoise(DataArray da, double scale) Static method to add signal dependant noise to a DataArray.
static void	addGuassianIndependantNoise(DataArray da, double sd) Static method to add Guassian signal indepent noies to a general DataArray.
static void	addGuassianIndependantNoise(RealImage im, double sd) Static method to add Guassian signal indepent noise to a RealImage
static void	addGuassianIndependantNoise(RealSignal s, double sd) Static method to add Guassian signal indepent noies to a RealSignal
static void	addPoissonNoise(DataArray da, double scale) Static method to add Poisson noise to a gneral DataArray after apply a scaling factor.
static void	addPoissonNoise(RealImage im, double photons) Static method to add Poisson noise to a RealImage specifying the average number of photons per pixel.

Methods inherited from class java.lang.Object

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

Constructor Detail

Noise

public Noise()

Method Detail

addGuassianIndependantNoise

public static void addGuassianIndependantNoise(RealSignal s,
                                               double sd)

Static method to add Guassian signal indepent noies to a RealSignal

Parameters:

s - the RealSignal

sd - standard deviation of the noise

addGuassianIndependantNoise

public static void addGuassianIndependantNoise(RealImage im,
                                               double sd)

Static method to add Guassian signal indepent noise to a RealImage

Parameters:

s - the RealSignal

sd - standard deviation of the noise

addGuassianIndependantNoise

public static void addGuassianIndependantNoise(DataArray da,
                                               double sd)

Static method to add Guassian signal indepent noies to a general DataArray.

Parameters:

da - the DataArray

sd - standard deviation of the noise

addGaussianDependantNoise

public static void addGaussianDependantNoise(DataArray da,
                                             double scale)

Static method to add signal dependant noise to a DataArray.

addPoissonNoise

public static void addPoissonNoise(RealImage im,
                                   double photons)

Static method to add Poisson noise to a RealImage specifying the average number of photons per pixel.

Parameters:

s - the RealImge

photons - mean number of photons per pixel.

addPoissonNoise

public static void addPoissonNoise(DataArray da,
                                   double scale)

Static method to add Poisson noise to a gneral DataArray after apply a scaling factor.