stira::wavelet::SubsampledTransform Class Reference

Inheritance diagram for stira::wavelet::SubsampledTransform:

Public Member Functions
	SubsampledTransform (WaveletType type=DAUBECHIES_2)
	constructor More...
	~SubsampledTransform ()
	destructor
virtual bool	Decompose (ArrayGrid< double > *pSourceGrid, int nrScales)
	decomposition More...
virtual bool	Reconstruct (double threshold=0.0)
	reconstruction More...
Public Member Functions inherited from stira::wavelet::Wavelet
	Wavelet ()
	constructor
virtual	~Wavelet ()
	destructor
Pyramid< double > *	GetPyramid ()
	Gets the pyramid with all the subbands.
ArrayGrid< double > *	GetCopyOfReconstructedGrid ()
	gets a copy of the grid after wavelket reconstruction Caller gets responsability to delete it after usage
int	GetNumberOfOrientations ()
	gets the number of orientations
int	GetNumberOfScales ()
	gets the number of scales

Additional Inherited Members
Protected Member Functions inherited from stira::wavelet::Wavelet
void	Initialize (ArrayGrid< double > *pSourceGrid, int nrScales, int nrOrientations=3, bool createBands=false, bool isSubsampled=true, bool isLowestScaleSubsampled=true)
	Initializes data structures and variables for decomposition. More...
Protected Attributes inherited from stira::wavelet::Wavelet
int	mNrOrientations
	Number of orientations; default 3 with classical wavelets (LH, HL and HH)
int	mNrScales
	Number of scales.
Pyramid< double > *	mpPyramid
	data structure for decomposed bands with wavelet coefficients
ArrayGrid< double > *	mpDecomposeReconstructGrid
	grid after deompose/reconstruct
int	mCurrentScale
	number of the scale being computed
WaveletFilterSet	mSet
	the wavelet filter taps
ArrayGrid< double > *	mpSourceGrid
	pointer to source data before decomposition

Constructor & Destructor Documentation

stira::wavelet::SubsampledTransform::SubsampledTransform

(

WaveletType

type = DAUBECHIES_2

)

constructor

Parameters

type	type of wavelet to use (see enum in waveletTabs.h)

References stira::wavelet::WaveletTapGenerator::Generate(), and stira::wavelet::WaveletFilterSet::pLowpassForward.

Member Function Documentation

bool stira::wavelet::SubsampledTransform::Decompose ( ArrayGrid< double > *  pSourceGrid, int  nrScales  )

virtual

decomposition

Parameters

pSourceGrid	grid to be deomposed
nrScales	nr of scales in the decomposition

Returns

true if all went well

Implements stira::wavelet::Wavelet.

References stira::imagedata::ArrayGrid< T >::Clone(), stira::imagedata::ArrayGridTools< T >::ExtractSubGrid(), stira::imagedata::ArrayGrid< T >::GetHeight(), stira::imagedata::ArrayGrid< T >::GetWidth(), stira::imagetools::NumberGridTools< T >::HardThreshold(), and stira::imagedata::ArrayGridTools< T >::InsertSubGrid().

bool stira::wavelet::SubsampledTransform::Reconstruct ( double  threshold = 0.0 )

virtual

reconstruction

Parameters

threshold

hard threshold for diagnostic purposes

Returns

true if all went well

Implements stira::wavelet::Wavelet.

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

• wavelet/wavelet/SubsampledTransform.h
• wavelet/wavelet/SubsampledTransform.cpp