Package org.anchoranalysis.plugin.image.bean.histogram.threshold

Class OtsuWeighted

Object

AnchorBean<CalculateLevel>

InitializableBean<CalculateLevel,NullInitialization>

NullParametersBean<CalculateLevel>

CalculateLevel

OtsuWeighted

public class OtsuWeighted
extends CalculateLevel

Similar to Otsu, but weighs the variances differently of background and foreground.

The standard otsu method seeks both foreground and background to have similar variance. But many for real world cases (e.g. fluorescent microscopy) one expects the background to be have much less variance, as it is very low-valued.

This algorithm allows the foreground and background variance to be non-equally weighted to a priori account for low-variance backgrounds.

Author:

Owen Feehan

See Also:

• Otsu

Constructor Summary

Constructors

Constructor	Description
OtsuWeighted()
OtsuWeighted(double weightForeground, double weightBackground)

Method Summary

Modifier and Type	Method	Description
int	calculateLevel(Histogram histogram)	Determines a voxel intensity that can be used for thresholding.
protected boolean	canEqual(Object other)
boolean	equals(Object o)
double	getWeightBackground()
double	getWeightForeground()
int	hashCode()
void	setWeightBackground(double weightBackground)
void	setWeightForeground(double weightForeground)

Methods inherited from class org.anchoranalysis.bean.NullParametersBean

initializeRecursive, onInitialization, onInitialization

Methods inherited from class org.anchoranalysis.bean.initializable.InitializableBean

getInitialization, getLogger, getPropertyInitializer, initialize, initializeRecursive, initRecursiveWithInitializer, isInitialized

Methods inherited from class org.anchoranalysis.bean.AnchorBean

checkMisconfigured, describeBean, describeChildren, duplicateBean, fields, findFieldsOfClass, getBeanName, getLocalPath, localise, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

OtsuWeighted

public OtsuWeighted()

OtsuWeighted

public OtsuWeighted(double weightForeground,
 double weightBackground)

Method Details

calculateLevel

public int calculateLevel(Histogram histogram)
                   throws OperationFailedException

Description copied from class: CalculateLevel

Determines a voxel intensity that can be used for thresholding.

Specified by:

calculateLevel in class CalculateLevel

Parameters:

histogram - a histogram of voxel-intensities from which a threshold-level can be derived.

Returns:

the threshold-level.

Throws:

OperationFailedException - if a level cannot be successfully calculated.

equals

public boolean equals(Object o)

Specified by:

equals in class CalculateLevel

canEqual

protected boolean canEqual(Object other)

hashCode

public int hashCode()

Specified by:

hashCode in class CalculateLevel

getWeightForeground

public double getWeightForeground()

setWeightForeground

public void setWeightForeground(double weightForeground)

getWeightBackground

public double getWeightBackground()

setWeightBackground

public void setWeightBackground(double weightBackground)