org.openimaj.image.analysis.watershed

Class Component

java.lang.Object

org.openimaj.image.analysis.watershed.Component

All Implemented Interfaces:

Cloneable

public class Component
extends Object
implements Cloneable

Represents a region or set of pixels (the name is based on the Microsoft paper)

Author:

David Dupplaw (dpd@ecs.soton.ac.uk), Jonathon Hare (jsh2@ecs.soton.ac.uk)

Field Summary

Fields

Modifier and Type	Field and Description
ComponentFeature[]	features List of features representing this component
boolean	isMSER Whether this component represents an MSER
IntValuePixel	pivot The pivot pixel

Constructor Summary

Constructors

Constructor and Description
Component(IntValuePixel p, Class<? extends ComponentFeature>... featureClasses) Default constructor.

Method Summary

Modifier and Type	Method and Description
void	accumulate(IntValuePixel p) Add a pixel to the component
Component	clone()
<T extends ComponentFeature> T	getFeature(Class<T> featureClass) Get the feature matching the given class if it exists.
ComponentFeature	getFeature(int index) Get the feature at the given index
Set<Pixel>	getPixels() Get the pixels in the component.
void	merge(Component p) Merge another component with this one
int	size() The size of the component (i.e.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

isMSER

public boolean isMSER

Whether this component represents an MSER

features

public ComponentFeature[] features

List of features representing this component

pivot

public IntValuePixel pivot

The pivot pixel

Constructor Detail

Component

@SafeVarargs
public Component(IntValuePixel p,
                              Class<? extends ComponentFeature>... featureClasses)

Default constructor.

Parameters:

p - The grey level of the component

featureClasses - the list of features to create for the component

Method Detail

toString

public String toString()

Overrides:

toString in class Object

See Also:

AbstractCollection.toString()

accumulate

public void accumulate(IntValuePixel p)

Add a pixel to the component

Parameters:

p - the pixel to add

merge

public void merge(Component p)

Merge another component with this one

Parameters:

p - the component to merge into this

size

public int size()

The size of the component (i.e. the number of pixels)

Returns:

the size of the component

getPixels

public Set<Pixel> getPixels()

Get the pixels in the component. If the component contains a PixelsFeature then the pixels will be returned from that; otherwise a set containing just the pivot pixel will be returned.

Returns:

the pixels in the component if possible, or just the pivot pixel

clone

public Component clone()

Overrides:

clone in class Object

getFeature

public ComponentFeature getFeature(int index)

Get the feature at the given index

Parameters:

index - the index

Returns:

the feature at the given index or null if it doesn't exist

getFeature

public <T extends ComponentFeature> T getFeature(Class<T> featureClass)

Get the feature matching the given class if it exists. If more than one feature of the given class exists, then the first will be returned.

Type Parameters:

T - the class of the feature

Parameters:

featureClass - the class of the feature

Returns:

the feature with the given class; or null if no feature is found