ij.process
Class MedianCut

java.lang.Object
  ij.process.MedianCut

public class MedianCut
extends java.lang.Object

Converts an RGB image to 8-bit index color using Heckbert's median-cut color quantization algorithm. Based on median.c by Anton Kruger from the September, 1994 issue of Dr. Dobbs Journal.

Constructor Summary

MedianCut(int[] pixels, int width, int height)

Method Summary

java.awt.Image

convert(int maxcubes) Uses Heckbert's median-cut algorithm to divide the color space defined by "hist" into "maxcubes" cubes.

Methods inherited from class java.lang.Object

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

Constructor Detail

MedianCut

public MedianCut(int[] pixels,
                 int width,
                 int height)

Method Detail

convert

public java.awt.Image convert(int maxcubes)

Uses Heckbert's median-cut algorithm to divide the color space defined by "hist" into "maxcubes" cubes. The centroids (average value) of each cube are are used to create a color table. "hist" is then updated to function as an inverse color map that is used to generate an 8-bit image.