org.openimaj.image.connectedcomponent

Class GreyscaleConnectedComponentLabeler

java.lang.Object

org.openimaj.image.connectedcomponent.GreyscaleConnectedComponentLabeler

All Implemented Interfaces:

org.openimaj.image.analyser.ImageAnalyser<org.openimaj.image.FImage>

public class GreyscaleConnectedComponentLabeler
extends Object
implements org.openimaj.image.analyser.ImageAnalyser<org.openimaj.image.FImage>

A Connected Component Labeler for grey-level images. This class can be used to transform an image that represents a map of labeled objects into a list of ConnectedComponents.

Internally we use a flood-fill approach to finding the ConnectedComponents.

Author:

Jonathon Hare (jsh2@ecs.soton.ac.uk)

Constructor Summary

Constructors

Constructor and Description
GreyscaleConnectedComponentLabeler()

Method Summary

Modifier and Type	Method and Description
void	analyseImage(org.openimaj.image.FImage image)
List<org.openimaj.image.pixel.ConnectedComponent>	findComponents(org.openimaj.image.FImage image) Syntactic sugar for calling analyseImage(FImage) followed by getComponents();
protected org.openimaj.image.pixel.ConnectedComponent	floodFill(org.openimaj.image.FImage image, org.openimaj.image.pixel.Pixel start, int[][] output, int color)
List<org.openimaj.image.pixel.ConnectedComponent>	getComponents()

Methods inherited from class java.lang.Object

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

Constructor Detail

GreyscaleConnectedComponentLabeler

public GreyscaleConnectedComponentLabeler()

Method Detail

findComponents

public List<org.openimaj.image.pixel.ConnectedComponent> findComponents(org.openimaj.image.FImage image)

Syntactic sugar for calling analyseImage(FImage) followed by getComponents();

Parameters:

image - the image to extract components from

Returns:

the extracted components.

floodFill

protected org.openimaj.image.pixel.ConnectedComponent floodFill(org.openimaj.image.FImage image,
                                                                org.openimaj.image.pixel.Pixel start,
                                                                int[][] output,
                                                                int color)

analyseImage

public void analyseImage(org.openimaj.image.FImage image)

Specified by:

analyseImage in interface org.openimaj.image.analyser.ImageAnalyser<org.openimaj.image.FImage>

getComponents

public List<org.openimaj.image.pixel.ConnectedComponent> getComponents()

Returns:

the list of components found in the last call to analyseImage(FImage).