Module imagingbook.common

Package imagingbook.common.geometry.fitting.ellipse.algebraic

Class EllipseFit5Points

java.lang.Object

imagingbook.common.geometry.fitting.ellipse.algebraic.EllipseFit5Points

All Implemented Interfaces:

EllipseFitAlgebraic

public class EllipseFit5Points
extends Object
implements EllipseFitAlgebraic

Performs an exact ellipse fit to 5 given points. If the fit is unsuccessful, getParameters() returns null. The underlying algorithm is described in Section F.3.3 of [1].

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

Version:

2022/11/17

Nested Class Summary

Nested classes/interfaces inherited from interface imagingbook.common.geometry.fitting.ellipse.algebraic.EllipseFitAlgebraic

EllipseFitAlgebraic.FitType

Constructor Summary

Constructors

Constructor	Description
EllipseFit5Points(Pnt2d[] points)

Method Summary

Modifier and Type	Method	Description
double[]	getParameters()	Returns a vector of algebraic ellipse parameters: (a,b,c,d,e,f), representing the ellipse by a x^2 + b x y + c y^2 + d x + e y + f = 0.
static void	main(String[] args)

Methods inherited from class java.lang.Object

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

Methods inherited from interface imagingbook.common.geometry.fitting.ellipse.algebraic.EllipseFitAlgebraic

getDataOffsetCorrectionMatrix, getEllipse, isEllipse

Constructor Details

EllipseFit5Points

public EllipseFit5Points(Pnt2d[] points)

Method Details

getParameters

public double[] getParameters()

Description copied from interface: EllipseFitAlgebraic

Returns a vector of algebraic ellipse parameters: (a,b,c,d,e,f), representing the ellipse by a x^2 + b x y + c y^2 + d x + e y + f = 0.

Specified by:

getParameters in interface EllipseFitAlgebraic

Returns:

the ellipse parameters

main

public static void main(String[] args)