dirac::VHFilter Class Reference

A virtual parent class to do vertical and horizontal splitting with wavelet filters.

#include <wavelet_utils.h>

Inheritance diagram for dirac::VHFilter:

Public Member Functions
	VHFilter ()
virtual	~VHFilter ()
virtual void	Split (const int xp, const int yp, const int xl, const int yl, CoeffArray &coeff_data)=0
	Split a subband into 4.
virtual void	Synth (const int xp, const int yp, const int xl, const int yl, CoeffArray &coeff_data)=0
	Create a single band from 4 quadrant bands.
virtual int	GetShift () const =0
	Return the value of the additional bitshift.

Protected Member Functions
void	Interleave (const int xp, const int yp, const int xl, const int yl, CoeffArray &coeff_data)
	Interleave data from separate subbands into even and odd positions for in-place calculation - called by Synth.
void	DeInterleave (const int xp, const int yp, const int xl, const int yl, CoeffArray &coeff_data)
	De-interleave data even and odd positions into separate subbands - called by Split.
void	ShiftRowLeft (CoeffType *row, int length, int shift)
	Shift all vals in Row by 'shift' bits to the left to increase accuracy by 'shift' bits. Used in Analysis stage of filter.
void	ShiftRowRight (CoeffType *row, int length, int shift)
	Shift all vals in Row by 'shift' bits to the right to counter the shift in the Analysis stage. This function is used in the Synthesis stage.

Constructor & Destructor Documentation

VHFilter()

dirac::VHFilter::VHFilter ( )

inline

~VHFilter()

virtual dirac::VHFilter::~VHFilter ( )

inlinevirtual

Member Function Documentation

DeInterleave()

void dirac::VHFilter::DeInterleave ( const int xp, const int yp, const int xl, const int yl, CoeffArray & coeff_data )

inlineprotected

GetShift()

virtual int dirac::VHFilter::GetShift ( ) const

pure virtual

Implemented in dirac::VHFilterDAUB9_7, dirac::VHFilterDD13_7, dirac::VHFilterDD9_7, dirac::VHFilterHAAR0, dirac::VHFilterHAAR1, dirac::VHFilterHAAR2, and dirac::VHFilterLEGALL5_3.

Interleave()

void dirac::VHFilter::Interleave ( const int xp, const int yp, const int xl, const int yl, CoeffArray & coeff_data )

inlineprotected

ShiftRowLeft()

void dirac::VHFilter::ShiftRowLeft ( CoeffType * row, int length, int shift )

protected

ShiftRowRight()

void dirac::VHFilter::ShiftRowRight ( CoeffType * row, int length, int shift )

protected

Split()

virtual void dirac::VHFilter::Split ( const int xp, const int yp, const int xl, const int yl, CoeffArray & coeff_data )

pure virtual

Implemented in dirac::VHFilterDAUB9_7, dirac::VHFilterDD13_7, dirac::VHFilterDD9_7, dirac::VHFilterHAAR0, dirac::VHFilterHAAR1, dirac::VHFilterHAAR2, and dirac::VHFilterLEGALL5_3.

Synth()

virtual void dirac::VHFilter::Synth ( const int xp, const int yp, const int xl, const int yl, CoeffArray & coeff_data )

pure virtual

Implemented in dirac::VHFilterDAUB9_7, dirac::VHFilterDD13_7, dirac::VHFilterDD9_7, dirac::VHFilterHAAR0, dirac::VHFilterHAAR1, dirac::VHFilterHAAR2, and dirac::VHFilterLEGALL5_3.

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

• wavelet_utils.h