cn.apiclub.captcha.filter.image

类 RippleFilter

java.lang.Object

cn.apiclub.captcha.filter.image.AbstractBufferedImageOp

cn.apiclub.captcha.filter.image.TransformFilter

cn.apiclub.captcha.filter.image.RippleFilter

所有已实现的接口:

BufferedImageOp, Cloneable

public class RippleFilter
extends TransformFilter

A filter which distorts an image by rippling it in the X or Y directions. The amplitude and wavelength of rippling can be specified as well as whether pixels going off the edges are wrapped or not.

字段概要

字段

限定符和类型	字段和说明
static int	NOISE Noise ripples.
static int	SAWTOOTH Sawtooth wave ripples.
static int	SINE Sine wave ripples.
static int	TRIANGLE Triangle wave ripples.

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

BILINEAR, CLAMP, edgeAction, interpolation, NEAREST_NEIGHBOUR, originalSpace, RGB_CLAMP, transformedSpace, WRAP, ZERO

构造器概要

构造器

构造器和说明
RippleFilter() Construct a RippleFilter.

方法概要

方法

限定符和类型	方法和说明
int	getWaveType() Get the wave type.
float	getXAmplitude() Get the amplitude of ripple in the X direction.
float	getXWavelength() Get the wavelength of ripple in the X direction.
float	getYAmplitude() Get the amplitude of ripple in the Y direction.
float	getYWavelength() Get the wavelength of ripple in the Y direction.
void	setWaveType(int waveType) Set the wave type.
void	setXAmplitude(float xAmplitude) Set the amplitude of ripple in the X direction.
void	setXWavelength(float xWavelength) Set the wavelength of ripple in the X direction.
void	setYAmplitude(float yAmplitude) Set the amplitude of ripple in the Y direction.
void	setYWavelength(float yWavelength) Set the wavelength of ripple in the Y direction.
String	toString()
protected void	transformInverse(int x, int y, float[] out) Inverse transform a point.
protected void	transformSpace(Rectangle r) Forward transform a rectangle.

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

filter, filterPixelsNN, getEdgeAction, getInterpolation, setEdgeAction, setInterpolation

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

字段详细资料

SINE

public static final int SINE

Sine wave ripples.

另请参阅:

常量字段值

SAWTOOTH

public static final int SAWTOOTH

Sawtooth wave ripples.

另请参阅:

常量字段值

TRIANGLE

public static final int TRIANGLE

Triangle wave ripples.

另请参阅:

常量字段值

NOISE

public static final int NOISE

Noise ripples.

另请参阅:

常量字段值

构造器详细资料

RippleFilter

public RippleFilter()

Construct a RippleFilter.

方法详细资料

setXAmplitude

public void setXAmplitude(float xAmplitude)

Set the amplitude of ripple in the X direction.

参数:

xAmplitude - the amplitude (in pixels).

另请参阅:

getXAmplitude()

getXAmplitude

public float getXAmplitude()

Get the amplitude of ripple in the X direction.

返回:

the amplitude (in pixels).

另请参阅:

setXAmplitude(float)

setXWavelength

public void setXWavelength(float xWavelength)

Set the wavelength of ripple in the X direction.

参数:

xWavelength - the wavelength (in pixels).

另请参阅:

getXWavelength()

getXWavelength

public float getXWavelength()

Get the wavelength of ripple in the X direction.

返回:

the wavelength (in pixels).

另请参阅:

setXWavelength(float)

setYAmplitude

public void setYAmplitude(float yAmplitude)

Set the amplitude of ripple in the Y direction.

参数:

yAmplitude - the amplitude (in pixels).

另请参阅:

getYAmplitude()

getYAmplitude

public float getYAmplitude()

Get the amplitude of ripple in the Y direction.

返回:

the amplitude (in pixels).

另请参阅:

setYAmplitude(float)

setYWavelength

public void setYWavelength(float yWavelength)

Set the wavelength of ripple in the Y direction.

参数:

yWavelength - the wavelength (in pixels).

另请参阅:

getYWavelength()

getYWavelength

public float getYWavelength()

Get the wavelength of ripple in the Y direction.

返回:

the wavelength (in pixels).

另请参阅:

setYWavelength(float)

setWaveType

public void setWaveType(int waveType)

Set the wave type.

参数:

waveType - the type.

另请参阅:

getWaveType()

getWaveType

public int getWaveType()

Get the wave type.

返回:

the type.

另请参阅:

setWaveType(int)

transformSpace

protected void transformSpace(Rectangle r)

从类复制的说明: TransformFilter

Forward transform a rectangle. Used to determine the size of the output image.

覆盖:

transformSpace 在类中 TransformFilter

参数:

r - the rectangle to transform

transformInverse

protected void transformInverse(int x,
                    int y,
                    float[] out)

从类复制的说明: TransformFilter

Inverse transform a point. This method needs to be overriden by all subclasses.

指定者:

transformInverse 在类中 TransformFilter

参数:

x - the X position of the pixel in the output image

y - the Y position of the pixel in the output image

out - the position of the pixel in the input image

toString

public String toString()

覆盖:

toString 在类中 Object