Module imagingbook_plugins_book

Package More_

Class Fourier_Descriptor_Animation

java.lang.Object

More_.Fourier_Descriptor_Animation

All Implemented Interfaces:

PlugInFilter, JavaDocHelp

public class Fourier_Descriptor_Animation
extends Object
implements PlugInFilter, JavaDocHelp

This ImageJ plugin visualizes the composition of 2D shapes by superposition of nested ellipses, corresponding to complex coefficient pairs of elliptic Fourier descriptors.

The plugin assumes that the input image is binary (of type ByteProcessor). It is segmented and the outer contour of the largest connected component is used to calculate a Fourier descriptor (of type FourierDescriptorUniform) with a user-defined number of coefficient pairs. The plugin then displays a sequence of frames illustrating the reconstruction of the shape by superposition of nested ellipses as the path parameter (t) runs from 0 to 1. See Sec. 26.3.6 (esp. Fig. 26.12) of [1] for details.

[1] W. Burger, M.J. Burge, Digital Image Processing – An Algorithmic Introduction Using Java, 2nd ed, Springer (2016).

Version:

2022/10/28

Field Summary

Fields inherited from interface ij.plugin.filter.PlugInFilter

CONVERT_TO_FLOAT, DOES_16, DOES_32, DOES_8C, DOES_8G, DOES_ALL, DOES_RGB, DOES_STACKS, DONE, FINAL_PROCESSING, KEEP_THRESHOLD, NO_CHANGES, NO_IMAGE_REQUIRED, NO_UNDO, NO_UNDO_RESET, PARALLELIZE_IMAGES, PARALLELIZE_STACKS, ROI_REQUIRED, SNAPSHOT, STACK_REQUIRED, SUPPORTS_MASKING

Constructor Summary

Constructors

Constructor	Description
Fourier_Descriptor_Animation()	Constructor, asks to open a predefined sample image if no other image is currently open.

Method Summary

Modifier and Type	Method	Description
void	run(ImageProcessor ip)
int	setup(String arg, ImagePlus im)

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

Constructor Details

Fourier_Descriptor_Animation

public Fourier_Descriptor_Animation()

Constructor, asks to open a predefined sample image if no other image is currently open.

Method Details

setup

public int setup(String arg,
 ImagePlus im)

Specified by:

setup in interface PlugInFilter

run

public void run(ImageProcessor ip)

Specified by:

run in interface PlugInFilter