Catalano.Imaging.Concurrent.Filters

Class BernsenThreshold

java.lang.Object

Catalano.Imaging.Concurrent.Filters.BernsenThreshold

All Implemented Interfaces:

IApplyInPlace

public class BernsenThreshold
extends java.lang.Object
implements IApplyInPlace

Bernsen Threshold. The method uses a user-provided contrast threshold. If the local contrast (max-min) is above or equal to the contrast threshold, the threshold is set at the local midgrey value (the mean of the minimum and maximum grey values in the local window). If the local contrast is below the contrast threshold the neighbourhood is considered to consist only of one class and the pixel is set to object or background depending on the value of the midgrey.

Constructor Summary

Constructors

Constructor and Description
BernsenThreshold() Initialize a new instance of the BernsenThreshold class.
BernsenThreshold(int radius) Initialize a new instance of the BernsenThreshold class.
BernsenThreshold(int radius, double contrastThreshold) Initialize a new instance of the BernsenThreshold class.

Method Summary

Modifier and Type	Method and Description
void	applyInPlace(FastBitmap fastBitmap) Apply filter to an image.
double	getContrastThreshold() Get Contrast threshold.
int	getRadius() Get radius.
void	setContrastThreshold(double c) Set Contrast threshold.
void	setRadius(int radius) Set radius.

Methods inherited from class java.lang.Object

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

Constructor Detail

BernsenThreshold

public BernsenThreshold()

Initialize a new instance of the BernsenThreshold class.

BernsenThreshold

public BernsenThreshold(int radius)

Initialize a new instance of the BernsenThreshold class.

Parameters:

radius - Radius.

BernsenThreshold

public BernsenThreshold(int radius,
                        double contrastThreshold)

Initialize a new instance of the BernsenThreshold class.

Parameters:

radius - Radius

contrastThreshold - Contrast Threshold.

Method Detail

getRadius

public int getRadius()

Get radius.

Returns:

Radius.

setRadius

public void setRadius(int radius)

Set radius.

Parameters:

radius - Radius.

getContrastThreshold

public double getContrastThreshold()

Get Contrast threshold.

Returns:

Contrast threshold.

setContrastThreshold

public void setContrastThreshold(double c)

Set Contrast threshold.

Parameters:

c - Contrast threshold.

applyInPlace

public void applyInPlace(FastBitmap fastBitmap)

Description copied from interface: IApplyInPlace

Apply filter to an image.

Specified by:

applyInPlace in interface IApplyInPlace

Parameters:

fastBitmap - Image to be processed.