OpacityFilter

java.lang.Object
- com.jhlabs.image.AbstractBufferedImageOp
- - com.jhlabs.image.PointFilter
  - - com.jhlabs.image.OpacityFilter

All Implemented Interfaces:

java.awt.image.BufferedImageOp, java.lang.Cloneable
```
public class OpacityFilter
extends PointFilter
```
Sets the opacity (alpha) of every pixel in an image to a constant value.

Field Summary
- Fields inherited from class com.jhlabs.image.PointFilter
  canFilterIndexColorModel

Constructor Summary

Constructors
Constructor	Description
`OpacityFilter()`	Construct an OpacityFilter with 50% opacity.
`OpacityFilter(int opacity)`	Construct an OpacityFilter with the given opacity (alpha).

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`filterRGB(int x, int y, int rgb)`
`int`	`getOpacity()`	Get the opacity setting.
`void`	`setOpacity(int opacity)`	Set the opacity.
`java.lang.String`	`toString()`

Methods inherited from class com.jhlabs.image.PointFilter
filter, setDimensions

Methods inherited from class com.jhlabs.image.AbstractBufferedImageOp
clone, createCompatibleDestImage, getBounds2D, getPoint2D, getRenderingHints, getRGB, setRGB, stringToColor

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - OpacityFilter
```
public OpacityFilter()
```
    Construct an OpacityFilter with 50% opacity.
  - OpacityFilter
```
public OpacityFilter(int opacity)
```
    Construct an OpacityFilter with the given opacity (alpha).
    
    Parameters:
    
    opacity - the opacity (alpha) in the range 0..255
- Method Detail
  - setOpacity
```
public void setOpacity(int opacity)
```
    Set the opacity.
    
    Parameters:
    
    opacity - the opacity (alpha) in the range 0..255
    
    See Also:
    
    getOpacity()
  - getOpacity
```
public int getOpacity()
```
    Get the opacity setting.
    
    Returns:
    
    the opacity
    
    See Also:
    
    setOpacity(int)
  - filterRGB
```
public int filterRGB(int x,
                     int y,
                     int rgb)
```
    Specified by:
    
    filterRGB in class PointFilter
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object