cn.apiclub.captcha.filter.image

类 GammaFilter

java.lang.Object

cn.apiclub.captcha.filter.image.AbstractBufferedImageOp

cn.apiclub.captcha.filter.image.PointFilter

cn.apiclub.captcha.filter.image.TransferFilter

cn.apiclub.captcha.filter.image.GammaFilter

所有已实现的接口:

BufferedImageOp, Cloneable

public class GammaFilter
extends TransferFilter

A filter for changing the gamma of an image.

字段概要

从类继承的字段 cn.apiclub.captcha.filter.image.TransferFilter

bTable, gTable, initialized, rTable

从类继承的字段 cn.apiclub.captcha.filter.image.PointFilter

canFilterIndexColorModel

构造器概要

构造器

构造器和说明
GammaFilter() Construct a GammaFilter.
GammaFilter(float gamma) Construct a GammaFilter.
GammaFilter(float rGamma, float gGamma, float bGamma) Construct a GammaFilter.

方法概要

方法

限定符和类型	方法和说明
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.
String	toString()

从类继承的方法 cn.apiclub.captcha.filter.image.TransferFilter

filter, filterRGB, getLUT, makeTable, transferFunction

从类继承的方法 cn.apiclub.captcha.filter.image.PointFilter

setDimensions

从类继承的方法 cn.apiclub.captcha.filter.image.AbstractBufferedImageOp

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

从类继承的方法 java.lang.Object

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

构造器详细资料

GammaFilter

public GammaFilter()

Construct a GammaFilter.

GammaFilter

public GammaFilter(float gamma)

Construct a GammaFilter.

参数:

gamma - the gamma level for all RGB channels

GammaFilter

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

Construct a GammaFilter.

参数:

rGamma - the gamma level for the red channel

gGamma - the gamma level for the blue channel

bGamma - the gamma level for the green channel

方法详细资料

setGamma

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

Set the gamma levels.

参数:

rGamma - the gamma level for the red channel

gGamma - the gamma level for the blue channel

bGamma - the gamma level for the green channel

另请参阅:

getGamma()

setGamma

public void setGamma(float gamma)

Set the gamma level.

参数:

gamma - the gamma level for all RGB channels

另请参阅:

getGamma()

getGamma

public float getGamma()

Get the gamma level.

返回:

the gamma level for all RGB channels

另请参阅:

setGamma(float, float, float)

initialize

protected void initialize()

覆盖:

initialize 在类中 TransferFilter

toString

public String toString()

覆盖:

toString 在类中 Object