jigl.image.ops
Class ConnectedComponents

java.lang.Object
  |
  +--jigl.image.SimpleOperator
        |
        +--jigl.image.ops.ConnectedComponents

All Implemented Interfaces:

Operator

public class ConnectedComponents

extends SimpleOperator

Creates the connected regions of a BinaryImage

Field Summary

private int	background Background color, either 0 or 1
static int	EIGHT_CONNECTED Creates Connected Image from all it's neighbors
static int	FOUR_CONNECTED Creates Connected Image from neighbors UP, DOWN, LEFT, and RIGHT
private int	neighbors Number of neighbors for calculation, either FOUR_CONNECTED or EIGHT_CONNECTED

Constructor Summary

ConnectedComponents(int numberNeighbors, int backgroundColor)
Connected component constructor

Method Summary

protected Image

apply(BinaryImage image) Returns the GrayImage made up of Connected Regions.

Methods inherited from class jigl.image.SimpleOperator

apply, apply, apply, apply, apply, apply, apply, apply, apply, apply, apply, apply, apply

Methods inherited from class java.lang.Object

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

Field Detail

FOUR_CONNECTED

public static final int FOUR_CONNECTED

Creates Connected Image from neighbors UP, DOWN, LEFT, and RIGHT

See Also:

Constant Field Values

EIGHT_CONNECTED

public static final int EIGHT_CONNECTED

Creates Connected Image from all it's neighbors

See Also:

Constant Field Values

neighbors

private int neighbors

Number of neighbors for calculation, either FOUR_CONNECTED or EIGHT_CONNECTED

background

private int background

Background color, either 0 or 1

Constructor Detail

ConnectedComponents

public ConnectedComponents(int numberNeighbors,
                           int backgroundColor)
                    throws InvalidArgumentException

Connected component constructor

Parameters:

numberNeighbors - either FOUR_CONNECTED, or EIGHT_CONNECTED

backgroundColor - either 0 or 1

Method Detail

apply

protected Image apply(BinaryImage image)

Returns the GrayImage made up of Connected Regions. the background color is set to zero, and the region values start at 1

Overrides:

apply in class SimpleOperator

Parameters:

image - BinaryImage to calculate connected regions from

Returns:

GrayImage.