org.openimaj.image.analysis.pyramid.gaussian

Class GaussianPyramid<I extends Image<?,I> & SinglebandImageProcessor.Processable<Float,FImage,I>>

java.lang.Object

org.openimaj.image.analysis.pyramid.Pyramid<GaussianPyramidOptions<I>,GaussianOctave<I>,I>

org.openimaj.image.analysis.pyramid.gaussian.GaussianPyramid<I>

Type Parameters:

I - Type of underlying image

All Implemented Interfaces:

Iterable<GaussianOctave<I>>, ImageAnalyser<I>

public class GaussianPyramid<I extends Image<?,I> & SinglebandImageProcessor.Processable<Float,FImage,I>>
extends Pyramid<GaussianPyramidOptions<I>,GaussianOctave<I>,I>
implements ImageAnalyser<I>, Iterable<GaussianOctave<I>>

A Gaussian image pyramid consisting of a stack of octaves where the image halves its size. The pyramid is of the style described in Lowe's SIFT paper. Octaves are processed by an OctaveProcessor as they are created if the processor is set in the options object. The pyramid will only hold onto its octaves if either the keepOctaves option is set to true, or if a PyramidProcessor is set in the options. The PyramidProcessor will called after all the octaves are created. Pyramids are Iterable for easy access to the octaves; however this will only work if the pyramid has already been populated with the octaves retained.

Author:

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

Field Summary

Fields inherited from class org.openimaj.image.analysis.pyramid.Pyramid

octaves, options

Constructor Summary

Constructors

Constructor and Description
GaussianPyramid(GaussianPyramidOptions<I> options) Construct a Pyramid with the given options.

Method Summary

Modifier and Type	Method and Description
void	process(I img) Process the image and construct a pyramid applying any specified OctaveProcessor and/or PyramidProcessor along the way.

Methods inherited from class org.openimaj.image.analysis.pyramid.Pyramid

analyseImage, getOctaves, getOptions, iterator, setOptions

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.openimaj.image.analyser.ImageAnalyser

analyseImage

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Constructor Detail

GaussianPyramid

public GaussianPyramid(GaussianPyramidOptions<I> options)

Construct a Pyramid with the given options.

Parameters:

options - the options

Method Detail

process

public void process(I img)

Description copied from class: Pyramid

Process the image and construct a pyramid applying any specified OctaveProcessor and/or PyramidProcessor along the way. If a PyramidProcessor is specified or the options have keepOctaves set to true, then the octaves of the pyramid will be retained.

Specified by:

process in class Pyramid<GaussianPyramidOptions<I extends Image<?,I> & SinglebandImageProcessor.Processable<Float,FImage,I>>,GaussianOctave<I extends Image<?,I> & SinglebandImageProcessor.Processable<Float,FImage,I>>,I extends Image<?,I> & SinglebandImageProcessor.Processable<Float,FImage,I>>

Parameters:

img - image to build pyramid from.