inra.ijpb.morphology.directional

Class OrientedLineStrel

java.lang.Object

inra.ijpb.algo.AlgoStub

inra.ijpb.morphology.strel.AbstractStrel3D

inra.ijpb.morphology.strel.AbstractStrel

inra.ijpb.morphology.directional.OrientedLineStrel

All Implemented Interfaces:

Algo, Strel, Strel3D

public class OrientedLineStrel
extends AbstractStrel
implements Strel

A linear structuring element, defined by a length and an orientation.

Author:

David Legland

Nested Class Summary

Nested classes/interfaces inherited from interface inra.ijpb.morphology.Strel

Strel.Shape

Field Summary

Fields inherited from interface inra.ijpb.morphology.Strel

BACKGROUND, FOREGROUND

Constructor Summary

Constructors

Constructor and Description
OrientedLineStrel(double length, double angleInDegrees) Creates an new instance of linear structuring element.

Method Summary

Modifier and Type	Method and Description
ij.process.ImageProcessor	closing(ij.process.ImageProcessor image) Performs a morphological closing on the input image, by applying first a dilation, then an erosion with the reversed structuring element.
ij.process.ImageProcessor	dilation(ij.process.ImageProcessor image) Implements a default algorithm for dilation, that consists in iterating over the neighbors of each pixel to compute the maximum value.
ij.process.ImageProcessor	erosion(ij.process.ImageProcessor image) Implements a default algorithm for erosion, that consists in iterating over the neighbors of each pixel to compute the minimum value.
int[][]	getMask() Returns the structuring element as a mask.
int[]	getOffset() Returns the offset in the mask.
int[][]	getShifts() Returns the structuring element as a set of shifts.
int[]	getSize() Returns the size of the structuring element, as an array of size in each direction.
ij.process.ImageProcessor	opening(ij.process.ImageProcessor image) Performs a morphological opening on the input image, by applying first an erosion, then a dilation with the reversed structuring element.
Strel	reverse() Returns this structuring element, as oriented line structuring elements are symmetric by definition.

Methods inherited from class inra.ijpb.morphology.strel.AbstractStrel

addBorder, closing, convertMaskToShifts, cropBorder, dilation, erosion, getChannelName, getMask3D, getShifts3D, opening, setChannelName

Methods inherited from class inra.ijpb.morphology.strel.AbstractStrel3D

addBorder, convertMaskToShifts, cropBorder, fireProgressChanged, fireProgressChanged, fireStatusChanged, fireStatusChanged, showProgress, showProgress

Methods inherited from class inra.ijpb.algo.AlgoStub

addAlgoListener, removeAlgoListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface inra.ijpb.morphology.Strel

getChannelName, setChannelName

Methods inherited from interface inra.ijpb.morphology.Strel3D

closing, dilation, erosion, getMask3D, getShifts3D, opening, showProgress, showProgress

Methods inherited from interface inra.ijpb.algo.Algo

addAlgoListener, removeAlgoListener

Constructor Detail

OrientedLineStrel

public OrientedLineStrel(double length,
                         double angleInDegrees)

Creates an new instance of linear structuring element. The number of pixels composing the line may differ from the specified length due to rounding effects.

Parameters:

length - the (approximate) length of the structuring element.

angleInDegrees - the angle with the horizontal of the structuring element

Method Detail

getSize

public int[] getSize()

Returns the size of the structuring element, as an array of size in each direction.

Specified by:

getSize in interface Strel

Specified by:

getSize in interface Strel3D

Returns:

the size of the structuring element

getMask

public int[][] getMask()

Returns the structuring element as a mask. Each value is either 0 or 255.

Specified by:

getMask in interface Strel

Returns:

the mask of the structuring element

getOffset

public int[] getOffset()

Returns the offset in the mask.

Specified by:

getOffset in interface Strel

Specified by:

getOffset in interface Strel3D

Returns:

the offset in the mask

getShifts

public int[][] getShifts()

Returns the structuring element as a set of shifts.

Specified by:

getShifts in interface Strel

Returns:

a set of shifts

dilation

public ij.process.ImageProcessor dilation(ij.process.ImageProcessor image)

Description copied from class: AbstractStrel

Implements a default algorithm for dilation, that consists in iterating over the neighbors of each pixel to compute the maximum value. The neighbors are obtained via the getShifts() method.

Specified by:

dilation in interface Strel

Overrides:

dilation in class AbstractStrel

Parameters:

image - the input image

Returns:

the result of dilation with this structuring element

See Also:

Strel.getShifts(), AbstractStrel.erosion(ImageProcessor)

erosion

public ij.process.ImageProcessor erosion(ij.process.ImageProcessor image)

Description copied from class: AbstractStrel

Implements a default algorithm for erosion, that consists in iterating over the neighbors of each pixel to compute the minimum value. The neighbors are obtained via the getShifts() method.

Specified by:

erosion in interface Strel

Overrides:

erosion in class AbstractStrel

Parameters:

image - the input image

Returns:

the result of erosion with this structuring element

See Also:

Strel.getShifts(), AbstractStrel.dilation(ImageProcessor)

closing

public ij.process.ImageProcessor closing(ij.process.ImageProcessor image)

Description copied from class: AbstractStrel

Performs a morphological closing on the input image, by applying first a dilation, then an erosion with the reversed structuring element.

Specified by:

closing in interface Strel

Overrides:

closing in class AbstractStrel

Parameters:

image - the input image

Returns:

the result of closing with this structuring element

See Also:

AbstractStrel.dilation(ij.process.ImageProcessor), AbstractStrel.erosion(ij.process.ImageProcessor), AbstractStrel.opening(ij.process.ImageProcessor), Strel3D.reverse()

opening

public ij.process.ImageProcessor opening(ij.process.ImageProcessor image)

Description copied from class: AbstractStrel

Performs a morphological opening on the input image, by applying first an erosion, then a dilation with the reversed structuring element.

Specified by:

opening in interface Strel

Overrides:

opening in class AbstractStrel

Parameters:

image - the input image

Returns:

the result of opening with this structuring element

See Also:

AbstractStrel.dilation(ij.process.ImageProcessor), AbstractStrel.erosion(ij.process.ImageProcessor), AbstractStrel.closing(ij.process.ImageProcessor), Strel3D.reverse()

reverse

public Strel reverse()

Returns this structuring element, as oriented line structuring elements are symmetric by definition.

Specified by:

reverse in interface Strel

Specified by:

reverse in interface Strel3D

Returns:

the reversed structuring element