org.apache.commons.imaging.palette

Class Dithering

java.lang.Object

org.apache.commons.imaging.palette.Dithering

public final class Dithering
extends Object

Dithering algorithms to use when quantizing an image to paletted form.

Method Summary

Modifier and Type	Method and Description
static void	applyFloydSteinbergDithering(BufferedImage image, Palette palette) Changes the given image to only use colors from the given palette, applying Floyd-Steinberg dithering in the process.

Methods inherited from class java.lang.Object

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

Method Detail

applyFloydSteinbergDithering

public static void applyFloydSteinbergDithering(BufferedImage image,
                                                Palette palette)
                                         throws ImageWriteException

Changes the given image to only use colors from the given palette, applying Floyd-Steinberg dithering in the process. Ensure that your alpha values in the image and in the palette are consistent.

Parameters:

image - the image to change

palette - the palette to use

Throws:

ImageWriteException - if it fails to read the palette index