org.openimaj.image.feature.local.detector.dog.extractor

Class AbstractDominantOrientationExtractor

java.lang.Object

org.openimaj.image.feature.local.detector.dog.extractor.AbstractDominantOrientationExtractor

All Implemented Interfaces:

FeatureVectorExtractor<FloatFV,GradientScaleSpaceImageExtractorProperties<FImage>>

Direct Known Subclasses:

DominantOrientationExtractor, NullOrientationExtractor

public abstract class AbstractDominantOrientationExtractor
extends Object
implements FeatureVectorExtractor<FloatFV,GradientScaleSpaceImageExtractorProperties<FImage>>

Abstract superclass for objects capable of finding the dominant orientation of a point in scale-space.

Author:

Jonathon Hare (jsh2@ecs.soton.ac.uk)

Constructor Summary

Constructors

Constructor and Description
AbstractDominantOrientationExtractor()

Method Summary

Modifier and Type	Method and Description
FloatFV[]	extractFeature(GradientScaleSpaceImageExtractorProperties<FImage> props) Find the dominant orientations
abstract float[]	extractFeatureRaw(GradientScaleSpaceImageExtractorProperties<FImage> props) Find the dominant orientations.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractDominantOrientationExtractor

public AbstractDominantOrientationExtractor()

Method Detail

extractFeature

public FloatFV[] extractFeature(GradientScaleSpaceImageExtractorProperties<FImage> props)

Find the dominant orientations

Specified by:

extractFeature in interface FeatureVectorExtractor<FloatFV,GradientScaleSpaceImageExtractorProperties<FImage>>

Parameters:

props - Properties describing the interest point in scale space.

Returns:

an FloatFV containing the angles of the dominant orientations [-PI to PI].

extractFeatureRaw

public abstract float[] extractFeatureRaw(GradientScaleSpaceImageExtractorProperties<FImage> props)

Find the dominant orientations.

Parameters:

props - Properties describing the interest point in scale space.

Returns:

an array of the angles of the dominant orientations [-PI to PI].