de.unihalle.informatik.MiToBo.apps.xylem

Class XylemGrower.GrowingRegion2D

java.lang.Object

de.unihalle.informatik.MiToBo.apps.xylem.XylemGrower.GrowingRegion2D

Enclosing class:

XylemGrower

private class XylemGrower.GrowingRegion2D
extends Object

This class is responsible for the growing of a single MTBRegion2D which is the result of the preprocessing steps.

Field Summary

Fields

Modifier and Type	Field and Description
private int	BACKGROUND_PIXEL
private MTBRegion2D	growingRegion
private MTBImageByte	grownRegionImage
private double	hueMeanDegree
private double	localXThresh
private XylemGrower.Neighbourhood	neighbourhood
private int	numOfDefinedHuePixel
private int	numOfDefinedSaturationPixel
private int	numOfXPixel
private int	regionID
private double	satMean
private double	satSum
private Point2D.Double	sumOfHueCartesian
private Queue<Point2D.Double>	toInspectL
private MTBTopologicalNumber2D	topoNumber2D
private double	xMean
private double	xMeanSum

Constructor Summary

Constructors

Modifier	Constructor and Description
private	GrowingRegion2D(MTBRegion2D initialRegion, MTBImageByte grownRegionImage, XylemGrower.Neighbourhood nb, int uniqueID)

Method Summary

Modifier and Type	Method and Description
private void	checkNeighbor(List<Point2D.Double> pointsAddedL, int xNeighbor, int yNeighbor) Test if the given neighbor is to be added to the region.
private MTBRegion2D	growRegion() Grow the region.
private void	recalcHueMean(double newHueValue) Recalculate the mean including incrementing the number of pixels with define hue value, i.e. the number of pixels contributing to the hue sum.
private void	recalcSatMean(double newSaturationValue) Recalculate the saturation of the region including incrementing the number of pixels with define saturation value, i.e. the number of pixels contributing to the saturation sum.
private void	recalcXMean(double newXValue) Recalculate the X(Intensity / Brightness / Value )-value of the region.
private void	setup() Initialize the class for the region
private List<Point2D.Double>	visitNeighboursOf(Point2D.Double pixelToVisit) Inspect the eight/four neighbours of the pixel with the given coordinate.

Methods inherited from class java.lang.Object

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

Field Detail

BACKGROUND_PIXEL

private final int BACKGROUND_PIXEL

See Also:

Constant Field Values

growingRegion

private final MTBRegion2D growingRegion

grownRegionImage

private MTBImageByte grownRegionImage

neighbourhood

private final XylemGrower.Neighbourhood neighbourhood

regionID

private final int regionID

hueMeanDegree

private double hueMeanDegree

sumOfHueCartesian

private Point2D.Double sumOfHueCartesian

satSum

private double satSum

satMean

private double satMean

xMean

private double xMean

xMeanSum

private double xMeanSum

localXThresh

private double localXThresh

numOfDefinedHuePixel

private int numOfDefinedHuePixel

numOfDefinedSaturationPixel

private int numOfDefinedSaturationPixel

numOfXPixel

private int numOfXPixel

toInspectL

private final Queue<Point2D.Double> toInspectL

topoNumber2D

private final MTBTopologicalNumber2D topoNumber2D

Constructor Detail

GrowingRegion2D

private GrowingRegion2D(MTBRegion2D initialRegion,
                        MTBImageByte grownRegionImage,
                        XylemGrower.Neighbourhood nb,
                        int uniqueID)

Method Detail

growRegion

private MTBRegion2D growRegion()
                        throws de.unihalle.informatik.Alida.exceptions.ALDOperatorException,
                               de.unihalle.informatik.Alida.exceptions.ALDProcessingDAGException

Grow the region.

This is the main loop, where we inspect each pixel based on the contour of the region, and visit each neighbor ( eight/four ) and compare the hue and the intensity.

Returns:

The MTBRegion2D after the growing is finished, i.e. there are no more pixel left in the list of unvisited pixels.

Throws:

de.unihalle.informatik.Alida.exceptions.ALDOperatorException

de.unihalle.informatik.Alida.exceptions.ALDProcessingDAGException

See Also:

visitNeighboursOf(java.awt.geom.Point2D.Double)

recalcHueMean

private void recalcHueMean(double newHueValue)

Recalculate the mean including incrementing the number of pixels with define hue value, i.e. the number of pixels contributing to the hue sum.

It first converts the angle into a vector of length 1, then add the new coordinate to the sum of vectors. Then it calculates the new hue mean in radians-format, finally setting the hue mean by converting it into degree.

Parameters:

newHueValue - The new hue-value.

recalcSatMean

private void recalcSatMean(double newSaturationValue)

Recalculate the saturation of the region including incrementing the number of pixels with define saturation value, i.e. the number of pixels contributing to the saturation sum.

Parameters:

newSaturationValue -

recalcXMean

private void recalcXMean(double newXValue)

Recalculate the X(Intensity / Brightness / Value )-value of the region.

NOTE: we assume that numOfXPixel is already incremented

Parameters:

newXValue -

setup

private void setup()

Initialize the class for the region

visitNeighboursOf

private List<Point2D.Double> visitNeighboursOf(Point2D.Double pixelToVisit)

Inspect the eight/four neighbours of the pixel with the given coordinate.

Parameters:

pixelToVisit - The Point2D.Double-coordinate of the pixel to visit.

Returns:

int The count of added pixel

checkNeighbor

private void checkNeighbor(List<Point2D.Double> pointsAddedL,
                           int xNeighbor,
                           int yNeighbor)

Test if the given neighbor is to be added to the region. If so is actually added to the region and also added to pointsAddedL which may me modified as a side effect.

Parameters:

pointsAddedL -

xNeighbor -

yNeighbor -