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

Class Otsu

Object

AnchorBean<CalculateLevel>

InitializableBean<CalculateLevel,NullInitialization>

NullParametersBean<CalculateLevel>

CalculateLevel

Otsu

public class Otsu
extends CalculateLevel

Performs auto-thresholding using Otsu's method.

This performs binary thresholding into foreground and background.

This minimizes intra-class intensity variance, or equivalently, maximizes inter-class variance.

Author:

Owen Feehan

See Also:

• Otsu's method on wikipedia

Constructor Summary

Constructors

Constructor	Description
Otsu()

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)
int	hashCode()

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

Otsu

public Otsu()

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