Package com.jhlabs.image

Class GammaFilter

java.lang.Object

com.jhlabs.image.AbstractBufferedImageOp

com.jhlabs.image.PointFilter

com.jhlabs.image.TransferFilter

com.jhlabs.image.GammaFilter

All Implemented Interfaces:

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

public class GammaFilter
extends TransferFilter

A filter for changing the gamma of an image.

Field Summary

Fields inherited from class com.jhlabs.image.TransferFilter

bTable, gTable, initialized, rTable

Fields inherited from class com.jhlabs.image.PointFilter

canFilterIndexColorModel

Constructor Summary

Constructors

Constructor	Description
GammaFilter()	Construct a GammaFilter.
GammaFilter(float gamma)	Construct a GammaFilter.
GammaFilter(float rGamma, float gGamma, float bGamma)	Construct a GammaFilter.

Method Summary

Modifier and Type	Method	Description
float	getGamma()	Get the gamma level.
protected void	initialize()
void	setGamma(float gamma)	Set the gamma level.
void	setGamma(float rGamma, float gGamma, float bGamma)	Set the gamma levels.
java.lang.String	toString()

Methods inherited from class com.jhlabs.image.TransferFilter

filter, filterRGB, getLUT, makeTable, transferFunction

Methods inherited from class com.jhlabs.image.PointFilter

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

GammaFilter

public GammaFilter()

Construct a GammaFilter.

GammaFilter

public GammaFilter(float gamma)

Construct a GammaFilter.

Parameters:

gamma - the gamma level for all RGB channels

GammaFilter

public GammaFilter(float rGamma,
                   float gGamma,
                   float bGamma)

Construct a GammaFilter.

Parameters:

rGamma - the gamma level for the red channel

gGamma - the gamma level for the blue channel

bGamma - the gamma level for the green channel

Method Detail

setGamma

public void setGamma(float rGamma,
                     float gGamma,
                     float bGamma)

Set the gamma levels.

Parameters:

rGamma - the gamma level for the red channel

gGamma - the gamma level for the blue channel

bGamma - the gamma level for the green channel

See Also:

getGamma()

setGamma

public void setGamma(float gamma)

Set the gamma level.

Parameters:

gamma - the gamma level for all RGB channels

See Also:

getGamma()

getGamma

public float getGamma()

Get the gamma level.

Returns:

the gamma level for all RGB channels

See Also:

setGamma(float, float, float)

initialize

protected void initialize()

Overrides:

initialize in class TransferFilter

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object