ij.process
Class MedianCut

java.lang.Object
  extended by 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(ColorProcessor ip)
           
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.
 ImageProcessor convertToByte(int maxcubes)
          This is a version of convert that returns a ByteProcessor.
 
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)

MedianCut

public MedianCut(ColorProcessor ip)
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.


convertToByte

public ImageProcessor convertToByte(int maxcubes)
This is a version of convert that returns a ByteProcessor.