org.apache.batik.ext.awt.image.rendered
Class IndexImage

java.lang.Object
  org.apache.batik.ext.awt.image.rendered.IndexImage

public class IndexImage
extends java.lang.Object

This class implements an adaptive palette generator to reduce images to a specified number of colors. Ideally this would also support a better dither option than just the JDK's pattern dither. The algorithm used is the 'Median Cut Algorithm' published by Paul Heckbert in early '80s.

Constructor Summary

IndexImage()

Method Summary

static java.awt.image.BufferedImage

getIndexedImage(java.awt.image.BufferedImage bi, int nColors) Converts the input image (must be TYPE_INT_RGB or TYPE_INT_ARGB) to an indexed image.

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexImage

public IndexImage()

Method Detail

getIndexedImage

public static java.awt.image.BufferedImage getIndexedImage(java.awt.image.BufferedImage bi,
                                                           int nColors)

Converts the input image (must be TYPE_INT_RGB or TYPE_INT_ARGB) to an indexed image. Generating an adaptive palette with number of colors specified.

Parameters:

bi - the image to be processed.

nColors - number of colors in the palette