be.hogent.tarsos.util.histogram
Class BhattacharyaDistance

java.lang.Object
  be.hogent.tarsos.util.histogram.BhattacharyaDistance

All Implemented Interfaces:

HistogramCorrelation

public final class BhattacharyaDistance
extends java.lang.Object
implements HistogramCorrelation

Bhattacharya histogram distance measure.

Author:

Joren Six

Constructor Summary

BhattacharyaDistance()

Method Summary

double	correlation(Histogram first, int displacement, Histogram second) The implementation of a histogram correlation or distance measure.
void	plotCorrelation(Histogram thisHistogram, int displacement, Histogram otherHistogram, java.lang.String fileName, java.lang.String title) Plots two histograms and the intersection between the two.

Methods inherited from class java.lang.Object

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

Constructor Detail

BhattacharyaDistance

public BhattacharyaDistance()

Method Detail

correlation

public double correlation(Histogram first,
                          int displacement,
                          Histogram second)

Description copied from interface: HistogramCorrelation

The implementation of a histogram correlation or distance measure.

Specified by:

correlation in interface HistogramCorrelation

Parameters:

first - the first histogram

displacement - the value to displace the otherHistogram (e.g. for optimal correlation, minimum distance between the two)

second - the second (not displaced) histogram

Returns:

the correlation between a histogram and a displaced histogram

plotCorrelation

public void plotCorrelation(Histogram thisHistogram,
                            int displacement,
                            Histogram otherHistogram,
                            java.lang.String fileName,
                            java.lang.String title)

Description copied from interface: HistogramCorrelation

Plots two histograms and the intersection between the two.

Specified by:

plotCorrelation in interface HistogramCorrelation

Parameters:

thisHistogram - the first histogram

displacement - the value to displace the otherHistogram (e.g. for optimal correlation between the two)

otherHistogram - the second (not displaced) histogram

fileName - Where to save the plot.

title - The title of the plot.