程序包 org.meteoinfo.image.filter

类 BoxBlurFilter

java.lang.Object

org.meteoinfo.image.filter.AbstractBufferedImageOp

org.meteoinfo.image.filter.BoxBlurFilter

所有已实现的接口:

BufferedImageOp, Cloneable

public class BoxBlurFilter
extends AbstractBufferedImageOp

A filter which performs a box blur on an image. The horizontal and vertical blurs can be specified separately and a number of iterations can be given which allows an approximation to Gaussian blur.

构造器概要

构造器

构造器	说明
BoxBlurFilter()	Construct a default BoxBlurFilter.
BoxBlurFilter(float hRadius, float vRadius, int iterations)	Construct a BoxBlurFilter.

方法概要

修饰符和类型	方法	说明
static void	blur(int[] in, int[] out, int width, int height, float radius)	Blur and transpose a block of ARGB pixels.
static void	blurFractional(int[] in, int[] out, int width, int height, float radius)
BufferedImage	filter(BufferedImage src, BufferedImage dst)
float	getHRadius()	Get the horizontal size of the blur.
int	getIterations()	Get the number of iterations the blur is performed.
boolean	getPremultiplyAlpha()	Get whether to premultiply the alpha channel.
float	getRadius()	Get the size of the blur.
float	getVRadius()	Get the vertical size of the blur.
void	setHRadius(float hRadius)	Set the horizontal size of the blur.
void	setIterations(int iterations)	Set the number of iterations the blur is performed.
void	setPremultiplyAlpha(boolean premultiplyAlpha)	Set whether to premultiply the alpha channel.
void	setRadius(float radius)	Set both the horizontal and vertical sizes of the blur.
void	setVRadius(float vRadius)	Set the vertical size of the blur.
String	toString()

从类继承的方法 org.meteoinfo.image.filter.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

BoxBlurFilter

public BoxBlurFilter()

Construct a default BoxBlurFilter.

BoxBlurFilter

public BoxBlurFilter(float hRadius,
                     float vRadius,
                     int iterations)

Construct a BoxBlurFilter.

参数:

hRadius - the horizontal radius of blur

vRadius - the vertical radius of blur

iterations - the number of time to iterate the blur

方法详细资料

setPremultiplyAlpha

public void setPremultiplyAlpha(boolean premultiplyAlpha)

Set whether to premultiply the alpha channel.

参数:

premultiplyAlpha - true to premultiply the alpha

另请参阅:

getPremultiplyAlpha()

getPremultiplyAlpha

public boolean getPremultiplyAlpha()

Get whether to premultiply the alpha channel.

返回:

true to premultiply the alpha

另请参阅:

setPremultiplyAlpha(boolean)

filter

public BufferedImage filter(BufferedImage src,
                            BufferedImage dst)

blur

public static void blur(int[] in,
                        int[] out,
                        int width,
                        int height,
                        float radius)

Blur and transpose a block of ARGB pixels.

参数:

in - the input pixels

out - the output pixels

width - the width of the pixel array

height - the height of the pixel array

radius - the radius of blur

blurFractional

public static void blurFractional(int[] in,
                                  int[] out,
                                  int width,
                                  int height,
                                  float radius)

setHRadius

public void setHRadius(float hRadius)

Set the horizontal size of the blur.

参数:

hRadius - the radius of the blur in the horizontal direction

另请参阅:

getHRadius()

getHRadius

public float getHRadius()

Get the horizontal size of the blur.

返回:

the radius of the blur in the horizontal direction

另请参阅:

setHRadius(float)

setVRadius

public void setVRadius(float vRadius)

Set the vertical size of the blur.

参数:

vRadius - the radius of the blur in the vertical direction

另请参阅:

getVRadius()

getVRadius

public float getVRadius()

Get the vertical size of the blur.

返回:

the radius of the blur in the vertical direction

另请参阅:

setVRadius(float)

setRadius

public void setRadius(float radius)

Set both the horizontal and vertical sizes of the blur.

参数:

radius - the radius of the blur in both directions

另请参阅:

getRadius()

getRadius

public float getRadius()

Get the size of the blur.

返回:

the radius of the blur in the horizontal direction

另请参阅:

setRadius(float)

setIterations

public void setIterations(int iterations)

Set the number of iterations the blur is performed.

参数:

iterations - the number of iterations

另请参阅:

getIterations()

getIterations

public int getIterations()

Get the number of iterations the blur is performed.

返回:

the number of iterations

另请参阅:

setIterations(int)

toString

public String toString()

覆盖:

toString 在类中 Object