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   -> Volume 5, Issue 2


Software: Uvi_Wave 2.0: Wavelet Toolbox for Matlab
 
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nuria@tsc.uvigo.es (Nuria Gonzalez Prelcic )
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PostPosted: Wed Dec 04, 2002 9:49 am    
Subject: Software: Uvi_Wave 2.0: Wavelet Toolbox for Matlab
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Software: Uvi_Wave 2.0: Wavelet Toolbox for Matlab


-:-:-:-:- Uvi_Wave version 2.0 -:-:-:-:-

WAVELET TOOLBOX for MATLAB


I am pleased to announce you the release of Uvi_Wave version 2.0. It is
available by anonymous ftp at the following sites:

ftp.tsc.uvigo.es
(directory: pub/Uvi_Wave/matlab/)


http://www.tsc.uvigo.es/~wavelets/uvi_wave.html


A short description of the tools available in Uvi_Wave, remarking the
new functions included in this version (*), is presented below.


- Wavelet Transform:

wt - One dimensional Wavelet Transform
iwt - Inverse one dimensional Wavelet Transform
wt2d - Two dimensional Wavelet Transform
iwt2d - Inverse two dimensional Wavelet Transform
wtmethod - Wavelet subband alignment method selection

- Multiresolution Analysis:

nssffb - Non sub-sampled wavelet FIR filter bank
nssffb2d - 2D non sub-sampled wavelet FIR filter bank
aprox - One dimensional multiresolution approximation signal
detail - One dimensional multiresolution detail signal
multires - Full one dimensional multiresolution analysis
mres2d - 2D multiresolution approximation/detail image
wavelet - Wavelet and scale functions calculation

- Filter Generation:

wspline - Spline biorthogonal filters generation
daub - Daubechies orthogonal filters generation

- Subband Processing Utilities:

bandsite - Wavelet subband localization
bandext - Wavelet subband extraction
bandins - Wavelet subband insertion
bandmax - Wavelet subband maxima extraction
elmin - Wavelet transform minima deletion
localext - Wavelet transform local limits extraction
center - Wavelet subband alignment calculation
wtcenter - Wavelet subband methodical alignment calculation
wvltsize - Wavelet transform size calculation
maxrsize - Inverse wavelet transform size calculation

- Scalogram:

* morletw - Morlet Wavelet calculation
* scalog - Scalogram calculation
* srf - 3D representation of a surface

- Wavelet Packet Transform:

* wpk - Direct Wavelet Packet Transform
* iwpk - Inverse Wavelet Packet Transform
* pruneadd - Tree pruning algorithm for additive costs
* prunenon - Pruning algorithm for non-additive costs
* growadd - Tree growth algorithm for additive costs
* grownon - Growth algorithm for non-additive costs
* lpenerg - Energy with l^p norm
* shanent - Shannon entropy of the coefficients
* logenerg - 'Log energy' functional
* cwent - Coifman-Wickerhauser entropy of the coefficients
* weaklp - Weak l^p norm
* cmparea - Compression area with squared coefficients
* cmpnum - Compression number
* chformat - Changes the format of basis and/or reorder the coefficients
* coefext - Extracts the coefficients corresponding to a certain basis
* extband - Wavelet Packet subband extraction
* basis - Script about the basis formats

- Viewing Utilities:

show - 2D image viewing with brightening scaling
bandadj - 2D wavelet transform subband bright normalization
nrm - Specific normalization process for bandadj
split - Multi-plot matrix splitting
isplit - One dimensional wavelet transform subband split
discplot - Discrete-style one dimensional plot

- Demo programs:

genimg - Generation of a set of 11 different test images
gnimgdmo - Shows images generated by genimg
wtdemo - Menu for all the available demos
wt___dmo - Demo on some 1D wavelet transform capabilities
wt2d_dmo - Demo on some 2D wavelet transform capabilities
mrs__dmo - Demo on 1D / 2D multiresolution analysis
filtdmo - Demo on orthogonal and biorthogonal filter generation
* scaldmo - Demo of the scalogram
* wpkdmo - Menu for the wavelet packet transform demos
* formatdm - Demo on the formats of the wavelet packet basis
* wp_dmo - Demo on some 1D wavelet packet transform capabilities
* basisdmo - Demo on tree search algorithms


Comments, suggestions and bug reports will be greatly appreciated. The e-mail
address for any question or comment is :

Uvi_Wave@tsc.uvigo.es

Nuria Gonzalez Prelcic Universidad de Vigo
nuria@tsc.uvigo.es ETSI de Telecomunicacion
Tel. ++34-86-812 124 Lagoas-Marcosende
Fax. ++34-86-812 116 36200 Vigo - Spain
All times are GMT + 1 Hour
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