Package net.imglib2.interpolation.neighborsearch

Class InverseDistanceWeightingInterpolator<T extends RealType<T>>

java.lang.Object

net.imglib2.AbstractEuclideanSpace

net.imglib2.AbstractRealLocalizable

net.imglib2.RealPoint

net.imglib2.interpolation.neighborsearch.InverseDistanceWeightingInterpolator<T>

Type Parameters:

T -

All Implemented Interfaces:

EuclideanSpace, Positionable, RealLocalizable, RealPositionable, RealRandomAccess<T>, Sampler<T>, Typed<T>

public class InverseDistanceWeightingInterpolator<T extends RealType<T>>
extends RealPoint
implements RealRandomAccess<T>

RealRandomAccess to a KNearestNeighborSearch whose sample value is generated by weighting the k nearest neighbors of a query real coordinate by their inverse distance to an arbitrary power p.

Field Summary

Fields

Modifier and Type	Field	Description
protected static final double	minThreshold
(package private) final int	numNeighbors
(package private) final double	p
(package private) final double	p2
protected final KNearestNeighborSearch<T>	search
(package private) final T	value

Fields inherited from class net.imglib2.AbstractRealLocalizable

position

Fields inherited from class net.imglib2.AbstractEuclideanSpace

n

Constructor Summary

Constructors

Constructor	Description
InverseDistanceWeightingInterpolator(KNearestNeighborSearch<T> search, double p)	Creates a new InverseDistanceWeightingInterpolator based on a KNearestNeighborSearch.

Method Summary

Modifier and Type	Method	Description
protected double	computeWeight(double squareDistance)
InverseDistanceWeightingInterpolator<T>	copy()
T	get()	Access the actual T instance providing access to a pixel, sub-pixel or integral region value the Sampler points at.
T	getType()	Get an instance of T.

Methods inherited from class net.imglib2.RealPoint

bck, equals, fwd, hashCode, move, move, move, move, move, move, move, move, move, move, setPosition, setPosition, setPosition, setPosition, setPosition, setPosition, setPosition, setPosition, setPosition, setPosition, toString, wrap

Methods inherited from class net.imglib2.AbstractRealLocalizable

getDoublePosition, getFloatPosition, localize, localize

Methods inherited from class net.imglib2.AbstractEuclideanSpace

numDimensions

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.imglib2.EuclideanSpace

numDimensions

Methods inherited from interface net.imglib2.Positionable

bck, fwd, move, move, move, move, move, setPosition, setPosition, setPosition, setPosition, setPosition

Methods inherited from interface net.imglib2.RealLocalizable

getDoublePosition, getFloatPosition, localize, localize, localize, positionAsDoubleArray, positionAsRealPoint

Methods inherited from interface net.imglib2.RealPositionable

move, move, move, move, move, setPosition, setPosition, setPosition, setPosition, setPosition

Methods inherited from interface net.imglib2.RealRandomAccess

copyRealRandomAccess, setPositionAndGet, setPositionAndGet, setPositionAndGet

Field Details

minThreshold

protected static final double minThreshold

See Also:

• Constant Field Values

search

protected final KNearestNeighborSearch<T extends RealType<T>> search

value

final T extends RealType<T> value

numNeighbors

final int numNeighbors

p

final double p

p2

final double p2

Constructor Details

InverseDistanceWeightingInterpolator

public InverseDistanceWeightingInterpolator(KNearestNeighborSearch<T> search,
 double p)

Creates a new InverseDistanceWeightingInterpolator based on a KNearestNeighborSearch.

Parameters:

search - - the KNearestNeighborSearch

p - power applied to the distance, higher values result in 'sharper' results, 0 results in a non-weighted mean of the k nearest neighbors.

Method Details

get

public T get()

Description copied from interface: Sampler

Access the actual T instance providing access to a pixel, sub-pixel or integral region value the Sampler points at.

Specified by:

get in interface Sampler<T extends RealType<T>>

getType

public T getType()

Description copied from interface: Typed

Get an instance of T.

It should not be assumed that the returned T instance is an independent copy. In particular, repeated calls to getType() may return the same instance.

Specified by:

getType in interface Sampler<T extends RealType<T>>

Specified by:

getType in interface Typed<T extends RealType<T>>

Returns:

an instance of T

computeWeight

protected double computeWeight(double squareDistance)

copy

public InverseDistanceWeightingInterpolator<T> copy()

Specified by:

copy in interface RealRandomAccess<T extends RealType<T>>

Specified by:

copy in interface Sampler<T extends RealType<T>>

Returns:

- A new Sampler in the same state accessing the same values. It does NOT copy T, just the state of the Sampler. Otherwise use T.copy() if available. Sampler.copy().get() == Sampler.get(), i.e. both hold the same value, not necessarily the same instance (this is the case for an ArrayCursor for example)