Package net.imglib2.interpolation.randomaccess

Class FloorInterpolator<T>

  • Type Parameters:
    T -
    All Implemented Interfaces:
    EuclideanSpace, Positionable, RealLocalizable, RealPositionable, RealRandomAccess<T>, Sampler<T>, Typed<T>
    public class FloorInterpolator<T>
extends Floor<RandomAccess<T>>
implements RealRandomAccess<T>
    RealRandomAccess to a RandomAccess by nearest floor interpolation (i.e., the value is sampled at floor(x)).

    In ImgLib2, the coordinate of a sample corresponds to the 'center' point of the sample, i.e. the location at which the sample was acquired. This scheme is intuitive in both rasters and irregularly samples data but can trigger confusion when displaying images on a screen with a pixel raster which, in this scheme, spans the range [-0.5,width-0.5]. In the screen-friendly alternative scheme, where sample coordinates reference the top left corner of the pixel rectangle representing a sample the range covered by an image is [0,width], however, coordinate transfer functions other than translation and homogeneous scaling generate different results than in the center-scheme. Rendering an image using FloorInterpolator means using the top-left-scheme, rendering it using NearestNeighborInterpolator, NLinearInterpolator, or LanczosInterpolator means using the center-scheme.

    • Constructor Detail

      • FloorInterpolator

        protected FloorInterpolator​(FloorInterpolator<T> floorInterpolator)

      • FloorInterpolator

        protected FloorInterpolator​(RandomAccessible<T> randomAccessible)

    • Method Detail

      • 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>

      • 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>
        Specified by:
        getType in interface Typed<T>
        Returns:
        an instance of T

      • copy

        public FloorInterpolator<T> copy()
        Specified by:
        copy in interface RealRandomAccess<T>
        Specified by:
        copy in interface Sampler<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)