Dirac - A Video Codec

Created by the British Broadcasting Corporation.


Public Member Functions | Private Member Functions | Private Attributes
dirac::WaveletTransform Class Reference

A class to do wavelet transforms. More...

#include <wavelet_utils.h>

Collaboration diagram for dirac::WaveletTransform:
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List of all members.

Public Member Functions

 WaveletTransform (int d=4, WltFilter f=DAUB9_7)
 Constructor.
virtual ~WaveletTransform ()
 Destructor.
void Transform (const Direction d, PicArray &pic_data, CoeffArray &coeff_data)
 Transforms the data to and from the wavelet domain.

Private Member Functions

 WaveletTransform (const WaveletTransform &cpy)
 Private, bodyless copy constructor: class should not be copied.
WaveletTransformoperator= (const WaveletTransform &rhs)
 Private, bodyless copy operator=: class should not be assigned.

Private Attributes

int m_depth
 Depth of the transform.
WltFilter m_filt_sort
 The (vertical and horizontal) wavelet filter set to be used.
VHFilterm_vhfilter
 A class to do the vertical and horizontal filtering required.

Detailed Description

A class to do forward and backward wavelet transforms by iteratively splitting or merging the lowest frequency band.


Constructor & Destructor Documentation

dirac::WaveletTransform::WaveletTransform ( int  d = 4,
WltFilter  f = DAUB9_7 
)
virtual dirac::WaveletTransform::~WaveletTransform ( )
virtual
dirac::WaveletTransform::WaveletTransform ( const WaveletTransform cpy)
private

Member Function Documentation

WaveletTransform& dirac::WaveletTransform::operator= ( const WaveletTransform rhs)
private
void dirac::WaveletTransform::Transform ( const Direction  d,
PicArray pic_data,
CoeffArray coeff_data 
)

Transforms the data to and from the wavelet domain.

Parameters:
dthe direction of the transform
pic_datathe data to be transformed
coeff_dataarray that holds the transform coefficient data

Member Data Documentation

int dirac::WaveletTransform::m_depth
private
WltFilter dirac::WaveletTransform::m_filt_sort
private
VHFilter* dirac::WaveletTransform::m_vhfilter
private

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

© 2004 British Broadcasting Corporation. Dirac code licensed under the Mozilla Public License (MPL) Version 1.1.
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