org.openimaj.image.analysis.pyramid

Class Octave<OPTIONS extends PyramidOptions<?,IMAGE>,PYRAMID extends Pyramid<OPTIONS,?,IMAGE>,IMAGE extends Image<?,IMAGE> & SinglebandImageProcessor.Processable<Float,FImage,IMAGE>>

java.lang.Object

org.openimaj.image.analysis.pyramid.Octave<OPTIONS,PYRAMID,IMAGE>

Type Parameters:

OPTIONS - Type of options object

PYRAMID - Type of parent pyramid

IMAGE - Type of underlying image

All Implemented Interfaces:

Iterable<IMAGE>

Direct Known Subclasses:

GaussianOctave

public abstract class Octave<OPTIONS extends PyramidOptions<?,IMAGE>,PYRAMID extends Pyramid<OPTIONS,?,IMAGE>,IMAGE extends Image<?,IMAGE> & SinglebandImageProcessor.Processable<Float,FImage,IMAGE>>
extends Object
implements Iterable<IMAGE>

An octave is an interval in scale space, typically corresponding to a doubling of sigma. Octaves contain a stack of one or more images, with each image typically at a higher scale than the previous. Octaves are Iterable for easy access to each of the images in turn.

Author:

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

Field Summary

Fields

Modifier and Type	Field and Description
IMAGE[]	images The images that make up this Octave
float	octaveSize The size of the octave relative to the original image.
OPTIONS	options The options used for the pyramid construction
PYRAMID	parentPyramid The pyramid that contains this Octave

Constructor Summary

Constructors

Constructor and Description
Octave(PYRAMID parent, float octaveSize) Construct a Gaussian octave with the provided parent Pyramid and octaveSize.

Method Summary

Modifier and Type	Method and Description
abstract IMAGE	getNextOctaveImage() Get the image that starts the next octave.
Iterator<IMAGE>	iterator()
abstract void	process(IMAGE image) Populate the octave, starting from the provided image.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

options

public OPTIONS extends PyramidOptions<?,IMAGE> options

The options used for the pyramid construction

images

public IMAGE extends Image<?,IMAGE> & SinglebandImageProcessor.Processable<Float,FImage,IMAGE>[] images

The images that make up this Octave

parentPyramid

public PYRAMID extends Pyramid<OPTIONS,?,IMAGE> parentPyramid

The pyramid that contains this Octave

octaveSize

public float octaveSize

The size of the octave relative to the original image.

Constructor Detail

Octave

public Octave(PYRAMID parent,
              float octaveSize)

Construct a Gaussian octave with the provided parent Pyramid and octaveSize. The octaveSize parameter is the size of the octave's images compared to the original image used to construct the pyramid. An octaveSize of 1 means the same size as the original, 2 means half size, 4 means quarter size, etc.

Parameters:

parent - the pyramid that this octave belongs to

octaveSize - the size of the octave relative to the original image.

Method Detail

process

public abstract void process(IMAGE image)

Populate the octave, starting from the provided image.

Parameters:

image - the image.

getNextOctaveImage

public abstract IMAGE getNextOctaveImage()

Get the image that starts the next octave. Usually this is the image that has twice the sigma of the image used to initialise this octave.

Returns:

image image to start next octave.

iterator

public Iterator<IMAGE> iterator()

Specified by:

iterator in interface Iterable<IMAGE extends Image<?,IMAGE> & SinglebandImageProcessor.Processable<Float,FImage,IMAGE>>