Module imagingbook_plugins_book

Package Ch20_Discrete_Cosine_Transform

Class DCT_2D_Demo

java.lang.Object

Ch20_Discrete_Cosine_Transform.DCT_2D_Demo

All Implemented Interfaces:

PlugInFilter, JavaDocHelp

public class DCT_2D_Demo
extends Object
implements PlugInFilter, JavaDocHelp

Calculates and displays the 2-dimensional DCT after converting the input image to a float image. of arbitrary size. Optionally, either a direct DCT or a fast DCT implementation is used, using either float or double data. See Ch. 20 of [1] for additional details.

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

Version:

2022/04/01

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
DCT_2D_Demo()	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

DCT_2D_Demo

public DCT_2D_Demo()

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