PyrBuilder< T > Class Template Reference

#include <Image/PyrBuilder.H>

Inheritance diagram for PyrBuilder< T >:

[legend]List of all members.

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Detailed Description

template<class T>
class PyrBuilder< T >

An interface class for creating dyadic pyramids from input images.

A dyadic image pyramid is an array of images such that the next image is obtained from the previous one by applying some filter and decimating the image by a factor 2 horizontally and vertically.

The PyrBuilder classes essentially wrap one of the buildPyr*() functions, binding preset values to all of the trailing arguments. This allows all of the buildPyr*() functions to be presented behind a uniform interface.

PyrBuilder defers the actual handling of input images through the abstract function build(). Different subclasses may implement this to apply different filters (e.g., gaussian, laplacian, gabor) before decimation. GenericPyrBuilder offers a generic implementation, while GaussianPyrBuilder, LaplacianPyrBuilder, and OrientedPyrBuilder are specialized for single filter types.

Definition at line 70 of file PyrBuilder.H.

Public Member Functions
	PyrBuilder ()
	Create an empty PyrBuilder.
virtual	~PyrBuilder ()
	Virtual destructor for safe inheritance.
virtual PyrBuilder< T > *	clone () const =0
	Cloning constructor useful to make clones from pointers:.
virtual ImageSet< T >	build (const Image< T > &image, const int firstlevel, const int depth, PyramidCache< T > *cache=0)=0
	Create a pyramid from an input image, with given depth (=nb levels).
virtual void	reset ()
	reset the pyramid - whatever that means for a specific pyramid

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Constructor & Destructor Documentation

template<class T> PyrBuilder< T >::PyrBuilder (   )

Create an empty PyrBuilder. Definition at line 58 of file PyrBuilder.C. References GVX_TRACE.

template<class T> PyrBuilder< T >::~PyrBuilder (   )  [virtual]

Virtual destructor for safe inheritance. Definition at line 65 of file PyrBuilder.C. References GVX_TRACE.

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Member Function Documentation

template<class T> virtual ImageSet<T> PyrBuilder< T >::build (  const Image< T > &  image, const int  firstlevel, const int  depth, PyramidCache< T > *  cache = 0 )  [pure virtual]

Create a pyramid from an input image, with given depth (=nb levels). Parameters: firstlevel  if non-zero, then pyramid levels prior to firstlevel may be skipped and left empty, as long as the remaining pyramid levels contain the same values that they would normally contain -- this parameter is only an optimization hint, and subclasses are free to ignore it if they so choose depth  number of levels the pyramid should contain (note that if firstlevel is non-zero, then some of those levels may be empty) Implemented in IntgGaussianPyrBuilder, IntgOrientedPyrBuilder, IntgReichardtPyrBuilder, GaussianPyrBuilder< T >, ConvolvePyrBuilder< T >, RGBConvolvePyrBuilder< T >, LaplacianPyrBuilder< T >, OrientedPyrBuilder< T >, GenericPyrBuilder< T >, ReichardtPyrBuilder< T >, TemplateMatchPyrBuilder, GaborPyrBuilder< T >, MotionEnergyPyrBuilder< T >, and GaussianPyrBuilder< PixRGB< byte > >.

template<class T> virtual PyrBuilder<T>* PyrBuilder< T >::clone (   )  const [pure virtual]

Cloning constructor useful to make clones from pointers:. Implemented in IntgGaussianPyrBuilder, IntgOrientedPyrBuilder, IntgReichardtPyrBuilder, GaussianPyrBuilder< T >, ConvolvePyrBuilder< T >, RGBConvolvePyrBuilder< T >, LaplacianPyrBuilder< T >, OrientedPyrBuilder< T >, GenericPyrBuilder< T >, ReichardtPyrBuilder< T >, TemplateMatchPyrBuilder, GaborPyrBuilder< T >, MotionEnergyPyrBuilder< T >, and GaussianPyrBuilder< PixRGB< byte > >.

template<class T> void PyrBuilder< T >::reset (   )  [virtual]

reset the pyramid - whatever that means for a specific pyramid a no op implementation is given in this base class - so if pyramids don't need this, they don't have to worry about it Reimplemented in IntgReichardtPyrBuilder, ReichardtPyrBuilder< T >, and MotionEnergyPyrBuilder< T >. Definition at line 72 of file PyrBuilder.C. References GVX_TRACE.

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The documentation for this class was generated from the following files:

• src/Image/PyrBuilder.H
• src/Image/PyrBuilder.C

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