QuantizeProcessor.DitherFilter

java.lang.Object
- nom.tam.fits.compression.algorithm.quant.QuantizeProcessor.PixelFilter
- - nom.tam.fits.compression.algorithm.quant.QuantizeProcessor.DitherFilter

Enclosing class:: QuantizeProcessor

private class QuantizeProcessor.DitherFilter
extends QuantizeProcessor.PixelFilter

Field Summary

Fields
Modifier and Type	Field	Description
`private int`	`iseed`
`private static int`	`LAST_RANDOM_VALUE`
`private static double`	`MAX_INT_AS_DOUBLE`
`private static int`	`N_RANDOM`	DO NOT CHANGE THIS; used when quantizing real numbers
`private int`	`nextRandom`
`private static int`	`RANDOM_MULTIPLICATOR`
`private static double`	`RANDOM_START_VALUE`
`private double[]`	`randomValues`

Constructor Summary

Constructors
Constructor Description

DitherFilter(long seed)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`initialize(long ditherSeed)`
`private double[]`	`initRandoms()`
`protected void`	`nextPixel()`
`double`	`nextRandom()`
`protected double`	`toDouble(int pixel)`
`protected int`	`toInt(double pixel)`

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

- Field Detail
  - LAST_RANDOM_VALUE
```
private static final int LAST_RANDOM_VALUE
```
    See Also:
    
    Constant Field Values
  - MAX_INT_AS_DOUBLE
```
private static final double MAX_INT_AS_DOUBLE
```
    See Also:
    
    Constant Field Values
  - N_RANDOM
```
private static final int N_RANDOM
```
    DO NOT CHANGE THIS; used when quantizing real numbers
    
    See Also:
    
    Constant Field Values
  - RANDOM_MULTIPLICATOR
```
private static final int RANDOM_MULTIPLICATOR
```
    See Also:
    
    Constant Field Values
  - RANDOM_START_VALUE
```
private static final double RANDOM_START_VALUE
```
    See Also:
    
    Constant Field Values
  - iseed
```
private int iseed
```
  - nextRandom
```
private int nextRandom
```
  - randomValues
```
private final double[] randomValues
```
- Constructor Detail
  - DitherFilter
```
DitherFilter(long seed)
```
- Method Detail
  - initialize
```
public void initialize(long ditherSeed)
```
  - nextRandom
```
public double nextRandom()
```
  - initRandoms
```
private double[] initRandoms()
```
  - nextPixel
```
protected void nextPixel()
```
    Overrides:
    
    nextPixel in class QuantizeProcessor.PixelFilter
  - toDouble
```
protected double toDouble(int pixel)
```
    Overrides:
    
    toDouble in class QuantizeProcessor.PixelFilter
  - toInt
```
protected int toInt(double pixel)
```
    Overrides:
    
    toInt in class QuantizeProcessor.PixelFilter