Package com.jhlabs.image

Class ThresholdFilter

java.lang.Object

com.jhlabs.image.AbstractBufferedImageOp

com.jhlabs.image.PointFilter

com.jhlabs.image.ThresholdFilter

All Implemented Interfaces:

java.awt.image.BufferedImageOp, java.lang.Cloneable

public class ThresholdFilter
extends PointFilter

A filter which performs a threshold operation on an image.

Field Summary

Fields inherited from class com.jhlabs.image.PointFilter

canFilterIndexColorModel

Constructor Summary

Constructors

Constructor	Description
ThresholdFilter()	Construct a ThresholdFilter.
ThresholdFilter(int t)	Construct a ThresholdFilter.

Method Summary

Modifier and Type	Method	Description
int	filterRGB(int x, int y, int rgb)
int	getBlack()	Set the color to be used for pixels below the lower threshold.
int	getLowerThreshold()	Get the lower threshold value.
int	getUpperThreshold()	Get the upper threshold value.
int	getWhite()	Get the color to be used for pixels above the upper threshold.
void	setBlack(int black)	Set the color to be used for pixels below the lower threshold.
void	setBlack(java.lang.String black)	Set the color to be used for pixels below the lower threshold as a string specification.
void	setLowerThreshold(int lowerThreshold)	Set the lower threshold value.
void	setUpperThreshold(int upperThreshold)	Set the upper threshold value.
void	setWhite(int white)	Set the color to be used for pixels above the upper threshold.
void	setWhite(java.lang.String white)	Set the color to be used for pixels above the upper threshold as a string specification.
java.lang.String	toString()

Methods inherited from class com.jhlabs.image.PointFilter

filter, setDimensions

Methods inherited from class com.jhlabs.image.AbstractBufferedImageOp

clone, createCompatibleDestImage, getBounds2D, getPoint2D, getRenderingHints, getRGB, setRGB, stringToColor

Methods inherited from class java.lang.Object

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

Constructor Detail

ThresholdFilter

public ThresholdFilter()

Construct a ThresholdFilter.

ThresholdFilter

public ThresholdFilter(int t)

Construct a ThresholdFilter.

Parameters:

t - the threshold value

Method Detail

setLowerThreshold

public void setLowerThreshold(int lowerThreshold)

Set the lower threshold value.

Parameters:

lowerThreshold - the threshold value

See Also:

getLowerThreshold()

getLowerThreshold

public int getLowerThreshold()

Get the lower threshold value.

Returns:

the threshold value

See Also:

setLowerThreshold(int)

setUpperThreshold

public void setUpperThreshold(int upperThreshold)

Set the upper threshold value.

Parameters:

upperThreshold - the threshold value

See Also:

getUpperThreshold()

getUpperThreshold

public int getUpperThreshold()

Get the upper threshold value.

Returns:

the threshold value

See Also:

setUpperThreshold(int)

setWhite

public void setWhite(int white)

Set the color to be used for pixels above the upper threshold.

Parameters:

white - the color

See Also:

getWhite()

setWhite

public void setWhite(java.lang.String white)

Set the color to be used for pixels above the upper threshold as a string specification.

Parameters:

white - The color specification.

See Also:

getBlack()

getWhite

public int getWhite()

Get the color to be used for pixels above the upper threshold.

Returns:

the color

See Also:

setWhite(int)

setBlack

public void setBlack(int black)

Set the color to be used for pixels below the lower threshold.

Parameters:

black - the color

See Also:

getBlack()

setBlack

public void setBlack(java.lang.String black)

Set the color to be used for pixels below the lower threshold as a string specification.

Parameters:

black - The color specification.

See Also:

getBlack()

getBlack

public int getBlack()

Set the color to be used for pixels below the lower threshold.

Returns:

the color

See Also:

setBlack(int)

filterRGB

public int filterRGB(int x,
                     int y,
                     int rgb)

Specified by:

filterRGB in class PointFilter

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object