Package gov.nih.mipav.model.algorithms

Class AlgorithmGrayScaleMorphology2D

java.lang.Object

java.lang.Thread

gov.nih.mipav.model.algorithms.AlgorithmBase

gov.nih.mipav.model.algorithms.AlgorithmGrayScaleMorphology2D

All Implemented Interfaces:

ActionListener, WindowListener, Runnable, EventListener

public class AlgorithmGrayScaleMorphology2D
extends AlgorithmBase

Two-Dimensional mathematical morphology class applied to Gray scale images. Kernels of 3x3 (4 or 8 connected) and 5x5 (12 connected) are available or user defined kernels can be supplied.

Version:

1.0 March 15, 1998

Author:

Matthew J. McAuliffe, Ph.D.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	AlgorithmGrayScaleMorphology2D.intObject	Simple class to temporarily store the object's size, ID and seed index value.

Nested classes/interfaces inherited from class java.lang.Thread

Thread.Builder, Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field	Description
private int	algorithm	algorithm type (i.e. erode, dilate)
static final int	BG_DISTANCE_MAP	DOCUMENT ME!
static final int	BOTTOM_HAT
private float	circleDiameter	kernel diameter.
private float	circleDiameterErode	Erosion kernel diameter.
static final int	CLOSE	DOCUMENT ME!
static final int	CLOSING_BY_RECONSTRUCTION
static final int	CONNECTED12	DOCUMENT ME!
static final int	CONNECTED4	DOCUMENT ME!
static final int	CONNECTED8	DOCUMENT ME!
static final int	DELETE_OBJECTS	DOCUMENT ME!
static final int	DILATE	DOCUMENT ME!
static final int	DISTANCE_MAP	DOCUMENT ME!
static final int	DISTANCE_MAP_FOR_SHAPE_INTERPOLATION	DOCUMENT ME!
private int	edgingType	Edge type.
private boolean	entireImage	if true, indicates that the VOIs should NOT be used and that entire image should be processed.
static final int	ERODE	DOCUMENT ME!
static final int	FILL_HOLES	DOCUMENT ME!
static final int	FIND_EDGES	DOCUMENT ME!
static final int	GEODESIC_DILATION
static final int	GEODESIC_EROSION
private int	geodesicSize	Size of geodesic erosions and dilations
static final int	ID_OBJECTS	DOCUMENT ME!
private double[]	imgBuffer	imgBuffer that hold pixel value for the 2D slice.
private double[]	imgBuffer2
static final int	INNER_EDGING	DOCUMENT ME!
private int	iterationsD	Dilation iteration times.
private int	iterationsE	Erosion iteration times.
private int	iterationsOpen
private int	kDim	Kernel dimension.
private BitSet	kernel	Kernel for both erosion and dilation.
private int	kernelType	kernel size (i.e. connectedness)
private int	kernelTypeErode	Erosion kernel type.
private double[]	maskBuffer
private ModelImage	maskImage	Used in geodesic dilation, geodesic erosion, morphological reconstruction by dilation, and morphological reconstruction by erosion Not used in opening by reconstruction and closing by reconstruction
private int	max	maximum, minimum size of objects.
private int	min	maximum, minimum size of objects.
static final int	MORPHOLOGICAL_GRADIENT
static final int	MORPHOLOGICAL_LAPLACIAN
static final int	MORPHOLOGICAL_RECONSTRUCTION_BY_DILATION
static final int	MORPHOLOGICAL_RECONSTRUCTION_BY_EROSION
private int	numPruningPixels	Number pixels to prune.
private Vector<AlgorithmGrayScaleMorphology2D.intObject>	objects	Vector that holding the current available objects in the 2D image.
static final int	OPEN	DOCUMENT ME!
static final int	OPENING_BY_RECONSTRUCTION
static final int	OUTER_EDGING	DOCUMENT ME!
static final int	PARTICLE_ANALYSIS	DOCUMENT ME!
static final int	PARTICLE_ANALYSIS_NEW	DOCUMENT ME!
private float	pixDist
private double[]	processBuffer	intermediate processing buffer, same size with imgBuffer.
private boolean	showFrame	Flag to show frame during each algorithm method call.
static final int	SIZED_CIRCLE	DOCUMENT ME!
static final int	SKELETONIZE	DOCUMENT ME!
static final int	TOP_HAT
private Point[]	ultErodeObjects	DOCUMENT ME!
static final int	ULTIMATE_ERODE	DOCUMENT ME!

Fields inherited from class gov.nih.mipav.model.algorithms.AlgorithmBase

destFlag, destImage, image25D, mask, maxProgressValue, minProgressValue, multiThreadingEnabled, nthreads, progress, progressModulus, progressStep, runningInSeparateThread, separable, srcImage, threadStopped

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor	Description
AlgorithmGrayScaleMorphology2D(ModelImage srcImg, int kernelType, float circleDiameter, int kernelTypeErode, float circleDiameterErode, int method, int iterOpen, int iterE, int pruningPix, int edType, boolean entireImage, boolean _showFrame)	Creates a new AlgorithmGrayScaleMorphology2D object.
AlgorithmGrayScaleMorphology2D(ModelImage srcImg, int kernelType, float circleDiameter, int method, int iterD, int iterE, int pruningPix, int edType, boolean entireImage)	Creates a new AlgorithmMorphology2D object.
AlgorithmGrayScaleMorphology2D(ModelImage srcImg, ModelImage maskImage, int kernelType, float circleDiameter, int method, int geodesicSize, int iterD, int iterE, boolean entireImage, boolean _showFrame)	Creates a new AlgorithmGrayScaleMorphology2D object.

Method Summary

Modifier and Type	Method	Description
private void	dilate(boolean returnFlag, int iters)	Dilates an image using the indicated kernel and the indicated number of executions.
private void	erode(boolean returnFlag, int iters)	Erodes an image using the indicated kernel and the indicated number of executions.
void	finalize()	Prepares this class for destruction.
private int	floodFill(short[] idBuffer, int stIndex, short floodValue, short objValue)	2D flood fill that forms a short mask.
static final Polygon	genContour(int xDimE, int yDimE, Point startPt, BitSet maskA)	Static method that generates a boundary of a general object.
static final Polygon	genContour(short[] image, int xDim, int yDim, Point startPt, short objectValue)	Static method that generates a boundary of a general object.
static final Polygon	genContour(ModelImage image, int xDim, int yDim, Point startPt)	Static method that generates a boundary of a binary object.
static final Polygon	genContour(BitSet image, int xDim, int yDim, Point startPt)	Static method that generates a boundary of a binary object.
private void	geodesicDilation(boolean returnFlag, int geodesicSize)	geodesic dilation of a boolean, unsigned byte or unsigned short image using the indicated kernel and the indicated number of executions.
private void	geodesicErosion(boolean returnFlag, int geodesicSize)	geodesic erosion of a boolean, unsigned byte or unsigned short image using the indicated kernel and the indicated number of executions.
private boolean	isEndpoint(int pix, short[] tmpBuffer)	This method returns whether or not pix is the index of an endpoint in tmpBuffer (it is assumed that location pix is not the intensity of the background in tmpBuffer).
private boolean	isNeighbor(int index, int pixNeighbor)	Check the neighbor pix.
private boolean	isSinglePoint(int index, short[] tmpBuffer)	Check if the given pix is a single point or not.
private void	makeCircularKernel(float circDiameter)	Generates a cicular kernel of a specific diameter.
private void	makeKernel(int kernelType)	Generates a kernel of the indicated type.
private boolean	onePixel(short[] buffer, int index, int xDim)	Used by ultimate erode to simplify code a little.
void	runAlgorithm()	Starts the program.
void	setAlgorithm(int method)	Sets the algorithm type (i.e. erode, dilate)
void	setImage(ModelImage img)	Sets the algorithm to new image of boolean type.
void	setIterations(int itersD, int itersE)	Sets number of iterations for closing or opening.
void	setKernel(BitSet kernel, int dim)	Sets user defined square kernels.
void	setMinMax(int _min, int _max)	Sets bounds of object size used to delete objects.
void	setPixDistance(float dist)	Used in the ultimate erode function to remove all eroded points less than the distance specified in pixel units.
void	setShowFrame(boolean showFrame)	DOCUMENT ME!
void	showKernel()	display kernel as 1 or 0 in the debug window.

Methods inherited from class gov.nih.mipav.model.algorithms.AlgorithmBase

actionPerformed, addListener, addProgressChangeListener, calculateImageSize, calculatePrincipleAxis, computeElapsedTime, computeElapsedTime, convertIntoFloat, delinkProgressToAlgorithm, delinkProgressToAlgorithmMulti, displayError, errorCleanUp, fireProgressStateChanged, fireProgressStateChanged, fireProgressStateChanged, fireProgressStateChanged, fireProgressStateChanged, generateProgressValues, getDestImage, getElapsedTime, getMask, getMaxProgressValue, getMinProgressValue, getNumberOfThreads, getProgress, getProgressChangeListener, getProgressChangeListeners, getProgressModulus, getProgressStep, getProgressValues, getSrcImage, isCompleted, isImage25D, isMultiThreadingEnabled, isRunningInSeparateThread, isThreadStopped, linkProgressToAlgorithm, linkProgressToAlgorithm, makeProgress, notifyListeners, removeListener, removeProgressChangeListener, run, setCompleted, setImage25D, setMask, setMaxProgressValue, setMinProgressValue, setMultiThreadingEnabled, setNumberOfThreads, setProgress, setProgressModulus, setProgressStep, setProgressValues, setProgressValues, setRunningInSeparateThread, setSrcImage, setStartTime, setThreadStopped, startMethod, windowActivated, windowClosed, windowClosing, windowDeactivated, windowDeiconified, windowIconified, windowOpened

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, isVirtual, join, join, join, join, ofPlatform, ofVirtual, onSpinWait, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, sleep, start, startVirtualThread, stop, suspend, threadId, toString, yield

Methods inherited from class java.lang.Object

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

Field Details

ERODE

public static final int ERODE

DOCUMENT ME!

See Also:

• Constant Field Values

DILATE

public static final int DILATE

DOCUMENT ME!

See Also:

• Constant Field Values

CLOSE

public static final int CLOSE

DOCUMENT ME!

See Also:

• Constant Field Values

OPEN

public static final int OPEN

DOCUMENT ME!

See Also:

• Constant Field Values

ID_OBJECTS

public static final int ID_OBJECTS

DOCUMENT ME!

See Also:

• Constant Field Values

DELETE_OBJECTS

public static final int DELETE_OBJECTS

DOCUMENT ME!

See Also:

• Constant Field Values

DISTANCE_MAP

public static final int DISTANCE_MAP

DOCUMENT ME!

See Also:

• Constant Field Values

BG_DISTANCE_MAP

public static final int BG_DISTANCE_MAP

DOCUMENT ME!

See Also:

• Constant Field Values

ULTIMATE_ERODE

public static final int ULTIMATE_ERODE

DOCUMENT ME!

See Also:

• Constant Field Values

PARTICLE_ANALYSIS

public static final int PARTICLE_ANALYSIS

DOCUMENT ME!

See Also:

• Constant Field Values

SKELETONIZE

public static final int SKELETONIZE

DOCUMENT ME!

See Also:

• Constant Field Values

FIND_EDGES

public static final int FIND_EDGES

DOCUMENT ME!

See Also:

• Constant Field Values

PARTICLE_ANALYSIS_NEW

public static final int PARTICLE_ANALYSIS_NEW

DOCUMENT ME!

See Also:

• Constant Field Values

FILL_HOLES

public static final int FILL_HOLES

DOCUMENT ME!

See Also:

• Constant Field Values

DISTANCE_MAP_FOR_SHAPE_INTERPOLATION

public static final int DISTANCE_MAP_FOR_SHAPE_INTERPOLATION

DOCUMENT ME!

See Also:

• Constant Field Values

MORPHOLOGICAL_GRADIENT

public static final int MORPHOLOGICAL_GRADIENT

See Also:

• Constant Field Values

TOP_HAT

public static final int TOP_HAT

See Also:

• Constant Field Values

BOTTOM_HAT

public static final int BOTTOM_HAT

See Also:

• Constant Field Values

MORPHOLOGICAL_LAPLACIAN

public static final int MORPHOLOGICAL_LAPLACIAN

See Also:

• Constant Field Values

GEODESIC_DILATION

public static final int GEODESIC_DILATION

See Also:

• Constant Field Values

GEODESIC_EROSION

public static final int GEODESIC_EROSION

See Also:

• Constant Field Values

MORPHOLOGICAL_RECONSTRUCTION_BY_DILATION

public static final int MORPHOLOGICAL_RECONSTRUCTION_BY_DILATION

See Also:

• Constant Field Values

MORPHOLOGICAL_RECONSTRUCTION_BY_EROSION

public static final int MORPHOLOGICAL_RECONSTRUCTION_BY_EROSION

See Also:

• Constant Field Values

OPENING_BY_RECONSTRUCTION

public static final int OPENING_BY_RECONSTRUCTION

See Also:

• Constant Field Values

CLOSING_BY_RECONSTRUCTION

public static final int CLOSING_BY_RECONSTRUCTION

See Also:

• Constant Field Values

SIZED_CIRCLE

public static final int SIZED_CIRCLE

DOCUMENT ME!

See Also:

• Constant Field Values

CONNECTED4

public static final int CONNECTED4

DOCUMENT ME!

See Also:

• Constant Field Values

CONNECTED8

public static final int CONNECTED8

DOCUMENT ME!

See Also:

• Constant Field Values

CONNECTED12

public static final int CONNECTED12

DOCUMENT ME!

See Also:

• Constant Field Values

OUTER_EDGING

public static final int OUTER_EDGING

DOCUMENT ME!

See Also:

• Constant Field Values

INNER_EDGING

public static final int INNER_EDGING

DOCUMENT ME!

See Also:

• Constant Field Values

algorithm

private int algorithm

algorithm type (i.e. erode, dilate)

circleDiameter

private float circleDiameter

kernel diameter.

circleDiameterErode

private float circleDiameterErode

Erosion kernel diameter.

edgingType

private int edgingType

Edge type.

entireImage

private boolean entireImage

if true, indicates that the VOIs should NOT be used and that entire image should be processed.

imgBuffer

private double[] imgBuffer

imgBuffer that hold pixel value for the 2D slice.

imgBuffer2

private double[] imgBuffer2

maskBuffer

private double[] maskBuffer

iterationsD

private int iterationsD

Dilation iteration times.

iterationsE

private int iterationsE

Erosion iteration times.

iterationsOpen

private int iterationsOpen

kDim

private int kDim

Kernel dimension.

kernel

private BitSet kernel

Kernel for both erosion and dilation.

kernelType

private int kernelType

kernel size (i.e. connectedness)

kernelTypeErode

private int kernelTypeErode

Erosion kernel type.

min

private int min

maximum, minimum size of objects.

max

private int max

maximum, minimum size of objects.

numPruningPixels

private int numPruningPixels

Number pixels to prune.

objects

private Vector<AlgorithmGrayScaleMorphology2D.intObject> objects

Vector that holding the current available objects in the 2D image.

pixDist

private float pixDist

processBuffer

private double[] processBuffer

intermediate processing buffer, same size with imgBuffer.

showFrame

private boolean showFrame

Flag to show frame during each algorithm method call.

ultErodeObjects

private Point[] ultErodeObjects

DOCUMENT ME!

maskImage

private ModelImage maskImage

Used in geodesic dilation, geodesic erosion, morphological reconstruction by dilation, and morphological reconstruction by erosion Not used in opening by reconstruction and closing by reconstruction

geodesicSize

private int geodesicSize

Size of geodesic erosions and dilations

Constructor Details

AlgorithmGrayScaleMorphology2D

public AlgorithmGrayScaleMorphology2D(ModelImage srcImg,
 int kernelType,
 float circleDiameter,
 int method,
 int iterD,
 int iterE,
 int pruningPix,
 int edType,
 boolean entireImage)

Creates a new AlgorithmMorphology2D object.

Parameters:

srcImg - source image model

kernelType - kernel size (i.e. connectedness)

circleDiameter - only valid if kernelType == SIZED_CIRCLE and represents the width of a circle in the resolution of the image

method - setup the algorithm method (i.e. erode, dilate)

iterD - number of times to dilate

iterE - number of times to erode

pruningPix - the number of pixels to prune

edType - the type of edging to perform (inner or outer)

entireImage - if true, indicates that the VOIs should NOT be used and that entire image should be processed

AlgorithmGrayScaleMorphology2D

public AlgorithmGrayScaleMorphology2D(ModelImage srcImg,
 int kernelType,
 float circleDiameter,
 int kernelTypeErode,
 float circleDiameterErode,
 int method,
 int iterOpen,
 int iterE,
 int pruningPix,
 int edType,
 boolean entireImage,
 boolean _showFrame)

Creates a new AlgorithmGrayScaleMorphology2D object.

Parameters:

srcImg - source image model

kernelType - dilation kernel size (i.e. connectedness)

circleDiameter - dilation only valid if kernelType == SIZED_CIRCLE and represents the width of a circle in the resolution of the image

kernelTypeErode - kernel size (i.e. connectedness) of erosion

circleDiameterErode - Erosion only valid if kernelType == SIZED_CIRCLE and represents the width of a circle in the resolution of the image

method - setup the algorithm method (i.e. erode, dilate)

iterOpen - number of times to dilate

iterE - number of times to erode

pruningPix - the number of pixels to prune

edType - the type of edging to perform (inner or outer)

entireImage - if true, indicates that the VOIs should NOT be used and that entire image should be processed

_showFrame - if true, indicates that show image frame after each algorithm be processed

AlgorithmGrayScaleMorphology2D

public AlgorithmGrayScaleMorphology2D(ModelImage srcImg,
 ModelImage maskImage,
 int kernelType,
 float circleDiameter,
 int method,
 int geodesicSize,
 int iterD,
 int iterE,
 boolean entireImage,
 boolean _showFrame)

Creates a new AlgorithmGrayScaleMorphology2D object.

Parameters:

srcImg - source image model

kernelType - dilation kernel size (i.e. connectedness)

circleDiameter - dilation only valid if kernelType == SIZED_CIRCLE and represents the width of a circle in the resolution of the image

method - setup the algorithm method (i.e. erode, dilate)

geodesicSize -

iterD - number of times to dilate

iterE - number of times to erode

entireImage - if true, indicates that the VOIs should NOT be used and that entire image should be processed

_showFrame - if true, indicates that show image frame after each algorithm be processed

Method Details

genContour

public static final Polygon genContour(BitSet image,
 int xDim,
 int yDim,
 Point startPt)

Static method that generates a boundary of a binary object. (aka. turtle algorithm: if 1 turn left, step if 0 turn right, step)

Parameters:

image - input image where binary object is located.

xDim - the x dimension of the image

yDim - the y dimension of the image

startPt - starting point

Returns:

returns boundary of the object as Polygon

genContour

public static final Polygon genContour(ModelImage image,
 int xDim,
 int yDim,
 Point startPt)

Static method that generates a boundary of a binary object. (aka. turtle algorithm: if 1 turn left, step if 0 turn right, step)

Parameters:

image - input image (Boolean) where binary object is located.

xDim - the x dimension of the image

yDim - the y dimension of the image

startPt - starting point

Returns:

returns boundary of the object as Polygon

genContour

public static final Polygon genContour(int xDimE,
 int yDimE,
 Point startPt,
 BitSet maskA)

Static method that generates a boundary of a general object. (aka. turtle algorithm: if 1 turn left, step if 0 turn right, step)

Parameters:

xDimE - the x dimension of the image

yDimE - the y dimension of the image

startPt - starting point

maskA - mask of the object

Returns:

returns boundary of the object as Polygon

genContour

public static final Polygon genContour(short[] image,
 int xDim,
 int yDim,
 Point startPt,
 short objectValue)

Static method that generates a boundary of a general object. (aka. turtle algorithm: if 1 turn left, step if 0 turn right, step)

Parameters:

image - input image where invalid input: '<'> object is located.

xDim - the x dimension of the image

yDim - the y dimension of the image

startPt - starting point

objectValue - value of the object

Returns:

returns boundary of the object as Polygon

finalize

public void finalize()

Prepares this class for destruction.

Overrides:

finalize in class AlgorithmBase

runAlgorithm

public void runAlgorithm()

Starts the program.

Specified by:

runAlgorithm in class AlgorithmBase

setAlgorithm

public void setAlgorithm(int method)

Sets the algorithm type (i.e. erode, dilate)

Parameters:

method - algorithm type

setImage

public void setImage(ModelImage img)

Sets the algorithm to new image of boolean type.

Parameters:

img - image model of boolean type

setIterations

public void setIterations(int itersD,
 int itersE)

Sets number of iterations for closing or opening.

Parameters:

itersD - number of dilations

itersE - number of erosions

setKernel

public void setKernel(BitSet kernel,
 int dim)

Sets user defined square kernels.

Parameters:

kernel - user defined kernel

dim - length of one dimension (kernel should be square)

setMinMax

public void setMinMax(int _min,
 int _max)

Sets bounds of object size used to delete objects.

Parameters:

_min - minimum size of objects

_max - maximum size of objects

setPixDistance

public void setPixDistance(float dist)

Used in the ultimate erode function to remove all eroded points less than the distance specified in pixel units.

Parameters:

dist - distance in pixels. Default = 0 (i.e. do not remove any points)

setShowFrame

public void setShowFrame(boolean showFrame)

DOCUMENT ME!

Parameters:

showFrame - DOCUMENT ME!

showKernel

public void showKernel()

display kernel as 1 or 0 in the debug window.

dilate

private void dilate(boolean returnFlag,
 int iters)

Dilates an image using the indicated kernel and the indicated number of executions. The grayscale dilation is the maximum value over the reflected kernel region. For symmetric kernels the reflected kernel is the same as the kernel.

Parameters:

returnFlag - if true then this operation is a step in the morph process (i.e. close)

iters - number of dilations

geodesicDilation

private void geodesicDilation(boolean returnFlag,
 int geodesicSize)

geodesic dilation of a boolean, unsigned byte or unsigned short image using the indicated kernel and the indicated number of executions.

Parameters:

returnFlag - if true then this operation is a step in the morph process (i.e. close)

geodesicSize -

geodesicErosion

private void geodesicErosion(boolean returnFlag,
 int geodesicSize)

geodesic erosion of a boolean, unsigned byte or unsigned short image using the indicated kernel and the indicated number of executions.

Parameters:

returnFlag - if true then this operation is a step in the morph process (i.e. close)

geodesicSize -

erode

private void erode(boolean returnFlag,
 int iters)

Erodes an image using the indicated kernel and the indicated number of executions. The grayscale erosion is the minimum value over the kernel region.

Parameters:

returnFlag - if true then this operation is a step in the morph process (i.e. open)

iters - number of erosion iterations.

floodFill

private int floodFill(short[] idBuffer,
 int stIndex,
 short floodValue,
 short objValue)

2D flood fill that forms a short mask.

Parameters:

idBuffer - buffer used to hold flood value

stIndex - the starting index of the seed point

floodValue - the value to flood the region with

objValue - object ID value that idenditifies the flood region.

Returns:

DOCUMENT ME!

isEndpoint

private boolean isEndpoint(int pix,
 short[] tmpBuffer)

This method returns whether or not pix is the index of an endpoint in tmpBuffer (it is assumed that location pix is not the intensity of the background in tmpBuffer).

Parameters:

pix - the index of a non-zero pixel in tmpBuffer

tmpBuffer - the image

Returns:

DOCUMENT ME!

isNeighbor

private boolean isNeighbor(int index,
 int pixNeighbor)

Check the neighbor pix.

Parameters:

index - pixel in center

pixNeighbor - neighbor pix

Returns:

boolean is connected neighbor or not

isSinglePoint

private boolean isSinglePoint(int index,
 short[] tmpBuffer)

Check if the given pix is a single point or not.

Parameters:

index - index

tmpBuffer - short[]

Returns:

boolean

makeCircularKernel

private void makeCircularKernel(float circDiameter)

Generates a cicular kernel of a specific diameter.

Parameters:

circDiameter - represents the width of a circle in the resolution of the image

makeKernel

private void makeKernel(int kernelType)

Generates a kernel of the indicated type.

Parameters:

kernelType - type of kernel to be generated.

onePixel

private boolean onePixel(short[] buffer,
 int index,
 int xDim)

Used by ultimate erode to simplify code a little.

Parameters:

buffer - reference to the mask data

index - pointer into the array

xDim - the width of image

Returns:

DOCUMENT ME!