Module imagingbook_plugins_book

Package Ch08_Binary_Regions

Class Major_Axis_Demo

java.lang.Object

Ch08_Binary_Regions.Major_Axis_Demo

All Implemented Interfaces:

PlugInFilter, JavaDocHelp

public class Major_Axis_Demo
extends Object
implements PlugInFilter, JavaDocHelp

ImageJ plugin, shows each region's major axis as a vector scaled by the region's eccentricity. See Sec. 8.6 of [1] for additional details. Also demonstrates the use of the region property scheme, i.e., how to assign numeric properties to regions and retrieve them afterwards. Requires a binary image. Zero-value pixels are considered background, all other pixels are foreground. Display lookup tables (LUTs) are not considered. Results are drawn into a new image (pixel graphics), 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:

2020/12/17

Field Summary

Fields

Modifier and Type	Field	Description
static BasicAwtColor	DrawingColor	Color for drawing overlay graphics.
static double	DrawingScale	Scale of the axis length.
static double	StrokeWidth	Stroke width for drawing overlay graphics.

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
Major_Axis_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

DrawingScale

public static double DrawingScale

Scale of the axis length.

DrawingColor

public static BasicAwtColor DrawingColor

Color for drawing overlay graphics.

StrokeWidth

public static double StrokeWidth

Stroke width for drawing overlay graphics.

Constructor Details

Major_Axis_Demo

public Major_Axis_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