com.jhlabs.image

Class UnsharpFilter

java.lang.Object

com.jhlabs.image.AbstractBufferedImageOp

com.jhlabs.image.ConvolveFilter

com.jhlabs.image.GaussianFilter

com.jhlabs.image.UnsharpFilter

All Implemented Interfaces:

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

public class UnsharpFilter
extends GaussianFilter

A filter which subtracts Gaussian blur from an image, sharpening it.

Author:

Jerry Huxtable

Field Summary

Fields inherited from class com.jhlabs.image.GaussianFilter

kernel, radius

Fields inherited from class com.jhlabs.image.ConvolveFilter

alpha, CLAMP_EDGES, premultiplyAlpha, WRAP_EDGES, ZERO_EDGES

Constructor Summary

Constructors

Constructor and Description
UnsharpFilter()

Method Summary

Modifier and Type	Method and Description
java.awt.image.BufferedImage	filter(java.awt.image.BufferedImage src, java.awt.image.BufferedImage dst)
float	getAmount() Get the amount of sharpening.
int	getThreshold() Get the threshold value.
void	setAmount(float amount) Set the amount of sharpening.
void	setThreshold(int threshold) Set the threshold value.
java.lang.String	toString()

Methods inherited from class com.jhlabs.image.GaussianFilter

convolveAndTranspose, getRadius, makeKernel, setRadius

Methods inherited from class com.jhlabs.image.ConvolveFilter

convolve, convolve, convolveH, convolveHV, convolveV, createCompatibleDestImage, getBounds2D, getEdgeAction, getKernel, getPoint2D, getPremultiplyAlpha, getRenderingHints, getUseAlpha, setEdgeAction, setKernel, setPremultiplyAlpha, setUseAlpha

Methods inherited from class com.jhlabs.image.AbstractBufferedImageOp

clone, getRGB, setRGB, stringToColor

Methods inherited from class java.lang.Object

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

Constructor Detail

UnsharpFilter

public UnsharpFilter()

Method Detail

setThreshold

public void setThreshold(int threshold)

Set the threshold value.

Parameters:

threshold - the threshold value

See Also:

getThreshold()

getThreshold

public int getThreshold()

Get the threshold value.

Returns:

the threshold value

See Also:

setThreshold(int)

setAmount

public void setAmount(float amount)

Set the amount of sharpening.

Parameters:

amount - the amount. Minimum value: 0, maximum value: 1

See Also:

getAmount()

getAmount

public float getAmount()

Get the amount of sharpening.

Returns:

the amount

See Also:

setAmount(float)

filter

public java.awt.image.BufferedImage filter(java.awt.image.BufferedImage src,
                                           java.awt.image.BufferedImage dst)

Specified by:

filter in interface java.awt.image.BufferedImageOp

Overrides:

filter in class GaussianFilter

toString

public java.lang.String toString()

Overrides:

toString in class GaussianFilter