Module imagingbook_plugins_book

Package Ch08_Binary_Regions

Class Convex_Hull_Demo

java.lang.Object

Ch08_Binary_Regions.Convex_Hull_Demo

All Implemented Interfaces:

PlugInFilter, JavaDocHelp

public class Convex_Hull_Demo
extends Object
implements PlugInFilter, JavaDocHelp

This ImageJ plugin demonstrates the use of the ConvexHull class. See Sec. 8.4.2 of [1] for additional details. It performs region segmentation, calculates the convex hull for each region found and then displays the result in a new image. Requires a binary image. Zero-value pixels are considered background, all other pixels are foreground. Display lookup tables (LUTs) are not considered. The resulting convex hull is shown as a vector overlay on top of a new image, the original image is not modified. If no image is currently open, the plugin optionally loads a suitable sample image.

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

Version:

2022/06/24

Field Summary

Fields

Modifier and Type	Field	Description
static BasicAwtColor	DrawingColor	Color of the convex hull outline.
static double	StrokeWidth

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
Convex_Hull_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

Field Details

DrawingColor

public static BasicAwtColor DrawingColor

Color of the convex hull outline.

StrokeWidth

public static double StrokeWidth

Constructor Details

Convex_Hull_Demo

public Convex_Hull_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