Package elki.distance.colorhistogram

Class RGBHistogramQuadraticDistance

java.lang.Object

elki.distance.AbstractNumberVectorDistance

elki.distance.MatrixWeightedQuadraticDistance

elki.distance.colorhistogram.RGBHistogramQuadraticDistance

All Implemented Interfaces:

Distance<NumberVector>, Norm<NumberVector>, NumberVectorDistance<NumberVector>, PrimitiveDistance<NumberVector>

@Reference(authors="J. Hafner, H. S. Sawhney, W. Equits, M. Flickner, W. Niblack",
           title="Efficient Color Histogram Indexing for Quadratic Form Distance Functions",
           booktitle="IEEE Trans. on Pattern Analysis and Machine Intelligence 17(7)",
           url="https://doi.org/10.1109/34.391417",
           bibkey="DBLP:journals/pami/HafnerSEFN95")
public class RGBHistogramQuadraticDistance
extends MatrixWeightedQuadraticDistance

Distance function for RGB color histograms based on a quadratic form and color similarity.

Reference:

J. Hafner, H. S. Sawhney, W. Equits, M. Flickner, W. Niblack
Efficient Color Histogram Indexing for Quadratic Form Distance Functions
IEEE Trans. on Pattern Analysis and Machine Intelligence 17(7)

Since:

0.3

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	RGBHistogramQuadraticDistance.Par	Parameterization class.

Field Summary

Fields inherited from class elki.distance.MatrixWeightedQuadraticDistance

weightMatrix

Constructor Summary

Constructors

Constructor	Description
RGBHistogramQuadraticDistance(int bpp)	Constructor.

Method Summary

Modifier and Type	Method	Description
static double[][]	computeWeightMatrix(int bpp)	Compute weight matrix for a RGB color histogram

Methods inherited from class elki.distance.MatrixWeightedQuadraticDistance

distance, equals, getInputTypeRestriction, hashCode, isSquared, norm

Methods inherited from class elki.distance.AbstractNumberVectorDistance

dimensionality, dimensionality, dimensionality, dimensionality, dimensionality, dimensionality, dimensionality, dimensionality

Methods inherited from class java.lang.Object

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

Methods inherited from interface elki.distance.Distance

isMetric, isSymmetric

Methods inherited from interface elki.distance.PrimitiveDistance

instantiate

Constructor Detail

RGBHistogramQuadraticDistance

public RGBHistogramQuadraticDistance(int bpp)

Constructor.

Parameters:

bpp - bins per plane.

Method Detail

computeWeightMatrix

public static double[][] computeWeightMatrix(int bpp)

Compute weight matrix for a RGB color histogram

Parameters:

bpp - bins per plane

Returns:

Weight matrix