org.openimaj.image.processing.morphology

Class Erode

java.lang.Object

org.openimaj.image.processing.morphology.Erode

All Implemented Interfaces:

ConnectedComponentProcessor, KernelProcessor<Float,FImage>, Processor<FImage>

public class Erode
extends Object
implements ConnectedComponentProcessor, KernelProcessor<Float,FImage>

Morphological erosion of connected components and (assumed binary) FImages. See MinFilter for greyscale erosion.

Author:

Jonathon Hare (jsh2@ecs.soton.ac.uk)

Field Summary

Fields

Modifier and Type	Field and Description
protected int	cx
protected int	cy
protected StructuringElement	element
protected int	sh
protected int	sw

Constructor Summary

Constructors

Constructor and Description
Erode() Construct the erode operator with a BOX structuring element
Erode(StructuringElement se) Construct the erode operator with the given structuring element

Method Summary

Modifier and Type	Method and Description
static void	erode(FImage img, int times) Apply erosion some number of times to an image with the default StructuringElement.BOX element
int	getKernelHeight() Get the height of the kernel required by this processor.
int	getKernelWidth() Get the width of the kernel required by this processor.
void	process(ConnectedComponent cc) Perform an operation on the given ConnectedComponent.
Float	processKernel(FImage patch) Process the patch with this kernel processor and return a value that will be used to build the convolved image.

Methods inherited from class java.lang.Object

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

Field Detail

element

protected StructuringElement element

cx

protected int cx

cy

protected int cy

sw

protected int sw

sh

protected int sh

Constructor Detail

Erode

public Erode(StructuringElement se)

Construct the erode operator with the given structuring element

Parameters:

se - the structuring element

Erode

public Erode()

Construct the erode operator with a BOX structuring element

Method Detail

process

public void process(ConnectedComponent cc)

Description copied from interface: ConnectedComponentProcessor

Perform an operation on the given ConnectedComponent.

Specified by:

process in interface ConnectedComponentProcessor

Parameters:

cc - The ConnectedComponent to process.

getKernelHeight

public int getKernelHeight()

Description copied from interface: KernelProcessor

Get the height of the kernel required by this processor.

Specified by:

getKernelHeight in interface KernelProcessor<Float,FImage>

Returns:

The height of the kernel required by this processor

getKernelWidth

public int getKernelWidth()

Description copied from interface: KernelProcessor

Get the width of the kernel required by this processor.

Specified by:

getKernelWidth in interface KernelProcessor<Float,FImage>

Returns:

The width of the kernel required by this processor.

processKernel

public Float processKernel(FImage patch)

Description copied from interface: KernelProcessor

Process the patch with this kernel processor and return a value that will be used to build the convolved image.

Specified by:

processKernel in interface KernelProcessor<Float,FImage>

Parameters:

patch - The patch of pixels from the image to process

Returns:

A value to place in the final convolved image.

erode

public static void erode(FImage img,
                         int times)

Apply erosion some number of times to an image with the default StructuringElement.BOX element

Parameters:

img - the image

times - the number of times to apply the erosion