cn.apiclub.captcha.filter.image

类 PolarFilter

java.lang.Object

cn.apiclub.captcha.filter.image.AbstractBufferedImageOp

cn.apiclub.captcha.filter.image.TransformFilter

cn.apiclub.captcha.filter.image.PolarFilter

所有已实现的接口:

BufferedImageOp, Cloneable

public class PolarFilter
extends TransformFilter

A filter which distorts and image by performing coordinate conversions between rectangular and polar coordinates.

字段概要

字段

限定符和类型	字段和说明
static int	INVERT_IN_CIRCLE Invert the image in a circle.
static int	POLAR_TO_RECT Convert from polar to rectangular coordinates.
static int	RECT_TO_POLAR Convert from rectangular to polar coordinates.

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
PolarFilter() Construct a PolarFilter.
PolarFilter(int type) Construct a PolarFilter.

方法概要

方法

限定符和类型	方法和说明
BufferedImage	filter(BufferedImage src, BufferedImage dst)
int	getType() Get the distortion type.
void	setType(int type) Set the distortion type.
String	toString()
protected void	transformInverse(int x, int y, float[] out) Inverse transform a point.

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

filterPixelsNN, getEdgeAction, getInterpolation, setEdgeAction, setInterpolation, transformSpace

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

RECT_TO_POLAR

public static final int RECT_TO_POLAR

Convert from rectangular to polar coordinates.

另请参阅:

常量字段值

POLAR_TO_RECT

public static final int POLAR_TO_RECT

Convert from polar to rectangular coordinates.

另请参阅:

常量字段值

INVERT_IN_CIRCLE

public static final int INVERT_IN_CIRCLE

Invert the image in a circle.

另请参阅:

常量字段值

构造器详细资料

PolarFilter

public PolarFilter()

Construct a PolarFilter.

PolarFilter

public PolarFilter(int type)

Construct a PolarFilter.

参数:

type - the distortion type

方法详细资料

filter

public BufferedImage filter(BufferedImage src,
                   BufferedImage dst)

指定者:

filter 在接口中 BufferedImageOp

覆盖:

filter 在类中 TransformFilter

setType

public void setType(int type)

Set the distortion type.

参数:

type - the distortion type

另请参阅:

getType()

getType

public int getType()

Get the distortion type.

返回:

the distortion type

另请参阅:

setType(int)

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