org.openimaj.image.feature.local.descriptor

Interface LocalFeatureProvider<T extends FeatureVector>

Type Parameters:

T - The type of FeatureVector

All Superinterfaces:

FeatureVectorProvider<T>

All Known Subinterfaces:

GradientFeatureProvider

All Known Implementing Classes:

IrregularBinningSIFTFeatureProvider, SIFTFeatureProvider

public interface LocalFeatureProvider<T extends FeatureVector>
extends FeatureVectorProvider<T>

Base interface for classes capable of building local descriptors. Local descriptors are constructed by being handed values in a unit square sampling patch (the patch itself in terms of image coordinates doesn't have to be square, but the coordinates will be normalised to lie in a unit square).

Author:

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

Method Summary

Modifier and Type	Method and Description
float	getOversamplingAmount() Get the amount of required over-sampling outside of the unit square patch.

Methods inherited from interface org.openimaj.feature.FeatureVectorProvider

getFeatureVector

Method Detail

getOversamplingAmount

float getOversamplingAmount()

Get the amount of required over-sampling outside of the unit square patch. An oversampling of 0.5 would result in methods such as SIFTFeatureProvider.addSample(float, float, float, float) being called with pixels in the range -0.5 to 1.5.

Returns:

the amount over sampling above the unit square