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 Description

UnsharpFilter()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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