jigl.image.ops
Class Dither

java.lang.Object
  |
  +--jigl.image.SimpleOperator
        |
        +--jigl.image.ops.Dither

All Implemented Interfaces:

Operator

public class Dither

extends SimpleOperator

This class provides the basic Floyd-Steinberg algorithm for dithering. The weights used are 7/16, 3/16, 5/16, 1/16. Supports ColorImage.

See Also:

Floyd-Steinberg Dithering

Field Summary

private int	exact
(package private) int	threshold
private KdTree	tree2 Stores the image.

Constructor Summary

Dither(RealColorImage paletteImage)
Creates a new instance of Dither.

Method Summary

protected Image	apply(ColorImage image) Applies the palette to a ColorImage applying Floyd-Steinberg dithering.
private float[]	findBest(float[] best) Utility methods
static void	main(String[] arg) This will test the functionality of this function

Methods inherited from class jigl.image.SimpleOperator

apply, apply, apply, apply, apply, apply, apply, apply, apply, apply, apply, apply, apply

Methods inherited from class java.lang.Object

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

Field Detail

tree2

private KdTree tree2

Stores the image.

threshold

int threshold

exact

private int exact

Constructor Detail

Dither

public Dither(RealColorImage paletteImage)

Creates a new instance of Dither. Note, this function uses a KdTree which is calculated in this constructor.

See Also:

KdTree

Method Detail

apply

protected Image apply(ColorImage image)

Applies the palette to a ColorImage applying Floyd-Steinberg dithering. Returned Image is a ColorImage. image is not modified.

Overrides:

apply in class SimpleOperator

Parameters:

image - ColorImage to dither

Returns:

ColorImage

findBest

private float[] findBest(float[] best)

Utility methods

main

public static void main(String[] arg)
                 throws Object

This will test the functionality of this function

Object