imagingbook.pub.edgepreservingfilters

Class KuwaharaFilter

java.lang.Object

imagingbook.lib.filters.GenericFilter

imagingbook.pub.edgepreservingfilters.KuwaharaFilter

public class KuwaharaFilter
extends GenericFilter

This class implements a Kuwahara-type filter, similar to the filter suggested in Tomita and Tsuji (1977). It structures the filter region into five overlapping, square subregions (including a center region) of size (r+1) x (r+1). See algorithm 5.2 in Utics Vol. 3.

Version:

2013/05/30

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	KuwaharaFilter.Parameters

Constructor Summary

Constructors

Constructor and Description
KuwaharaFilter()
KuwaharaFilter(int r, double tsigma)
KuwaharaFilter(KuwaharaFilter.Parameters params)

Method Summary

Modifier and Type	Method and Description
float[]	filterPixel(ImageAccessor.Rgb ia, int u, int v) Calculates and returns the filter result for a single pixel at the given position.
float	filterPixel(ImageAccessor.Scalar ia, int u, int v) Calculates and returns the filter result for a single pixel at the given position.

Methods inherited from class imagingbook.lib.filters.GenericFilter

applyTo, setOutOfBoundsStrategy

Methods inherited from class java.lang.Object

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

Constructor Detail

KuwaharaFilter

public KuwaharaFilter()

KuwaharaFilter

public KuwaharaFilter(KuwaharaFilter.Parameters params)

KuwaharaFilter

public KuwaharaFilter(int r,
                      double tsigma)

Method Detail

filterPixel

public float filterPixel(ImageAccessor.Scalar ia,
                         int u,
                         int v)

Description copied from class: GenericFilter

Calculates and returns the filter result for a single pixel at the given position.

Specified by:

filterPixel in class GenericFilter

Parameters:

ia - the ImageAccessor.Scalar representing the source (scalar-valued) image

u - the horizontal pixel position

v - the vertical pixel position

Returns:

the resulting (scalar) filter value for the specified pixel position

filterPixel

public float[] filterPixel(ImageAccessor.Rgb ia,
                           int u,
                           int v)

Description copied from class: GenericFilter

Calculates and returns the filter result for a single pixel at the given position.

Specified by:

filterPixel in class GenericFilter

Parameters:

ia - the ImageAccessor.Rgb representing the source (RGB) image

u - the horizontal pixel position

v - the vertical pixel position

Returns:

the resulting (RGB) filter value for the specified pixel position