imagingbook.pub.color.quantize

Class KMeansClusteringQuantizerApache

java.lang.Object

imagingbook.pub.color.quantize.ColorQuantizer

imagingbook.pub.color.quantize.KMeansClusteringQuantizerApache

public class KMeansClusteringQuantizerApache
extends ColorQuantizer

This class implements color quantization by k-means clustering of image pixels in RGB color space. It uses the Apache Commons Math class KMeansPlusPlusClusterer to perform the clustering.

Version:

2017/01/04

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	KMeansClusteringQuantizerApache.Parameters
static class	KMeansClusteringQuantizerApache.SamplingMethod

Field Summary

Fields inherited from class imagingbook.pub.color.quantize.ColorQuantizer

MAX_RGB

Constructor Summary

Constructors

Constructor and Description
KMeansClusteringQuantizerApache(int[] pixels)
KMeansClusteringQuantizerApache(int[] pixels, KMeansClusteringQuantizerApache.Parameters params) Creates a new quantizer instance from the supplied sequence of color values (assumed to be ARGB-encoded integers).

Method Summary

Modifier and Type	Method and Description
int[][]	getColorMap() Lists the color clusters to System.out (intended for debugging only).

Methods inherited from class imagingbook.pub.color.quantize.ColorQuantizer

findColorIndex, intToRgb, listColorMap, log2, quantize, quantize, quantize, rgbToInt, sqr

Methods inherited from class java.lang.Object

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

Constructor Detail

KMeansClusteringQuantizerApache

public KMeansClusteringQuantizerApache(int[] pixels,
                                       KMeansClusteringQuantizerApache.Parameters params)

Creates a new quantizer instance from the supplied sequence of color values (assumed to be ARGB-encoded integers).

Parameters:

pixels - Sequence of input color values.

params - Parameter object.

KMeansClusteringQuantizerApache

public KMeansClusteringQuantizerApache(int[] pixels)

Method Detail

getColorMap

public int[][] getColorMap()

Lists the color clusters to System.out (intended for debugging only).

Specified by:

getColorMap in class ColorQuantizer

Returns:

The table of quantization colors.