Module imagingbook_plugins_book

Package Ch10_Line_Fitting

Class Line_Rotation_Demo

java.lang.Object

Ch10_Line_Fitting.Line_Rotation_Demo

All Implemented Interfaces:

PlugIn, JavaDocHelp

public class Line_Rotation_Demo
extends Object
implements PlugIn, JavaDocHelp

ImageJ demo plugin, performs line fitting to a randomly sampled point set that is rotated in uniform steps. The result is shown as a stack of images with graphic overlays.

Two fitting methods are employed: (a) linear regression fitting, (b) orthogonal regression fitting. The result of the first varies with rotation, while orthogonal fitting is rotation-invariant. See Sec. 10.2 (Fig. 10.4) of [1] for additional details.

[1] W. Burger, M.J. Burge, Digital Image Processing – An Algorithmic Introduction, 3rd ed, Springer (2022).

Version:

2022/09/30

See Also:

• LinearRegressionFit
• OrthogonalLineFitEigen

Field Summary

Fields

Modifier and Type	Field	Description
static final Color	CentroidColor
static double	DashLength
static boolean	DrawCentroid
static boolean	DrawOrthogalFit
static boolean	DrawRegressionFit
static boolean	DrawSamplePoints
static int	H
static int	N
static final Color	OrthogonalFitColor
static Pnt2d	P1
static Pnt2d	P2
static final Color	PointColor
static double	PointRadius
static final Color	RegressionFitColor
static double	Sigma
static final double	StrokeWidth
static int	W

Constructor Summary

Constructors

Constructor	Description
Line_Rotation_Demo()

Method Summary

Modifier and Type	Method	Description
void	run(String arg)

Methods inherited from class java.lang.Object

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

Methods inherited from interface imagingbook.core.jdoc.JavaDocHelp

getJavaDocUrl

Field Details

W

public static int W

H

public static int H

StrokeWidth

public static final double StrokeWidth

See Also:

• Constant Field Values

DashLength

public static double DashLength

CentroidColor

public static final Color CentroidColor

RegressionFitColor

public static final Color RegressionFitColor

OrthogonalFitColor

public static final Color OrthogonalFitColor

PointColor

public static final Color PointColor

PointRadius

public static double PointRadius

P1

public static Pnt2d P1

P2

public static Pnt2d P2

N

public static int N

Sigma

public static double Sigma

DrawSamplePoints

public static boolean DrawSamplePoints

DrawOrthogalFit

public static boolean DrawOrthogalFit

DrawRegressionFit

public static boolean DrawRegressionFit

DrawCentroid

public static boolean DrawCentroid

Constructor Details

Line_Rotation_Demo

public Line_Rotation_Demo()

Method Details

run

public void run(String arg)

Specified by:

run in interface PlugIn