de.lmu.ifi.dbs.elki.data.images
Class AbstractComputeColorHistogram

java.lang.Object
  de.lmu.ifi.dbs.elki.data.images.AbstractComputeColorHistogram

All Implemented Interfaces:

ComputeColorHistogram, InspectionUtilFrequentlyScanned, Parameterizable

Direct Known Subclasses:

ComputeHSBColorHistogram, ComputeNaiveRGBColorHistogram

public abstract class AbstractComputeColorHistogram
extends Object
implements ComputeColorHistogram

Abstract class for color histogram computation.

Constructor Summary

AbstractComputeColorHistogram()

Method Summary

double[]	computeColorHistogram(File file) Compute a color histogram given a file name.
protected abstract int	getBinForColor(int rgb) Compute the bin number from a pixel color value.
protected abstract int	getNumBins() Get the number of bins.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractComputeColorHistogram

public AbstractComputeColorHistogram()

Method Detail

computeColorHistogram

public double[] computeColorHistogram(File file)
                               throws IOException

Description copied from interface: ComputeColorHistogram

Compute a color histogram given a file name.

Specified by:

computeColorHistogram in interface ComputeColorHistogram

Parameters:

file - File name

Returns:

Color histogram

Throws:

IOException - on file read errors.

getNumBins

protected abstract int getNumBins()

Get the number of bins.

Returns:

Number of bins

getBinForColor

protected abstract int getBinForColor(int rgb)

Compute the bin number from a pixel color value.

Parameters:

rgb - Pixel color value

Returns:

Bin number