be.hogent.tarsos.util.histogram
Class CrossCorrelation

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

All Implemented Interfaces:

HistogramCorrelation

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

Crosscorrelation as used in Baris Bozkurt's 'An automatic pitch analysis method for Turkish maquam music'. The measure is defined for modulo type histograms!

Author:

Joren Six

Constructor Summary

CrossCorrelation()

Method Summary

double	correlation(Histogram thisHistogam, int displacement, Histogram otherHistogram) 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

CrossCorrelation

public CrossCorrelation()

Method Detail

correlation

public double correlation(Histogram thisHistogam,
                          int displacement,
                          Histogram otherHistogram)

Description copied from interface: HistogramCorrelation

The implementation of a histogram correlation or distance measure.

Specified by:

correlation in interface HistogramCorrelation

Parameters:

thisHistogam - the first histogram

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

otherHistogram - 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.