CWaveletTransform Class Reference

PGF wavelet transform class. More...

#include <WaveletTransform.h>

List of all members.

Public Member Functions
	CWaveletTransform (UINT32 width, UINT32 height, int levels, DataT *data=NULL)
	~CWaveletTransform ()
void	ForwardTransform (int level)
UINT32	GetNofTiles (int level) const
const PGFRect &	GetROI (int level) const
CSubband *	GetSubband (int level, Orientation orientation)
const PGFRect &	GetTileIndices (int level) const
void	InverseTransform (int level, UINT32 *width, UINT32 *height, DataT **data)
void	SetROI ()
void	SetROI (const PGFRect &rect)

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Detailed Description

PGF wavelet transform class.

Author:

C. Stamm, R. Spuler

Definition at line 85 of file WaveletTransform.h.

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Constructor & Destructor Documentation

CWaveletTransform::CWaveletTransform	(	UINT32	width,
		UINT32	height,
		int	levels,
		DataT *	data = NULL
	)

Constructor: Constructs a wavelet transform pyramid of given size and levels.

Parameters:

	width	The width of the original image (at level 0) in pixels
	height	The height of the original image (at level 0) in pixels
	levels	The number of levels (>= 0)
	data	Input data of subband LL at level 0

Definition at line 35 of file WaveletTransform.cpp.

CWaveletTransform::~CWaveletTransform

(

)

[inline]

Destructor.

Definition at line 99 of file WaveletTransform.h.

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Member Function Documentation

void CWaveletTransform::ForwardTransform

(

int

level

)

Compute fast forward wavelet transform of LL subband at given level and stores result on all 4 subbands of level + 1.

Parameters:

level

A wavelet transform pyramid level (>= 0 && < Levels())

Definition at line 79 of file WaveletTransform.cpp.

UINT32 CWaveletTransform::GetNofTiles

(

int

level

)

const [inline]

Get number of tiles in x- or y-direction at given level.

Parameters:

level

A valid subband level.

Definition at line 143 of file WaveletTransform.h.

const PGFRect& CWaveletTransform::GetROI

(

int

level

)

const [inline]

Return ROI at given level.

Parameters:

level

A valid subband level.

Definition at line 148 of file WaveletTransform.h.

CSubband* CWaveletTransform::GetSubband	(	int	level,
		Orientation	orientation
	)			[inline]

Get pointer to one of the 4 subband at a given level.

Parameters:

	level	A wavelet transform pyramid level (>= 0 && <= Levels())
	orientation	A quarter of the subband (LL, LH, HL, HH)

Definition at line 120 of file WaveletTransform.h.

const PGFRect& CWaveletTransform::GetTileIndices

(

int

level

)

const [inline]

Get tile indices of a ROI at given level.

Parameters:

level

A valid subband level.

Definition at line 138 of file WaveletTransform.h.

void CWaveletTransform::InverseTransform	(	int	level,
		UINT32 *	width,
		UINT32 *	height,
		DataT **	data
	)

Compute fast inverse wavelet transform of all 4 subbands of given level and stores result in LL subband of level - 1.

Parameters:

	level	A wavelet transform pyramid level (> 0 && <= Levels())
	width	A pointer to the returned width of subband LL (in pixels)
	height	A pointer to the returned height of subband LL (in pixels)
	data	A pointer to the returned array of image data

Definition at line 227 of file WaveletTransform.cpp.

void CWaveletTransform::SetROI

(

)

For each subband set a referenct to ROI information.

For each subband set a reference to ROI information.

Definition at line 494 of file WaveletTransform.cpp.

void CWaveletTransform::SetROI

(

const PGFRect &

rect

)

Compute and store ROIs for each level.

Parameters:

rect

rectangular region of interest (ROI)

Definition at line 466 of file WaveletTransform.cpp.

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

• WaveletTransform.h
• WaveletTransform.cpp