Wavelet Toolbox

Reference

Functions by Category

Graphical User Interface Tools
wavemenu	Start graphical user interface tools.

Wavelets: General
biorfilt	Biorthogonal wavelet filter set.
centfrq	Wavelet center frequency.
dyaddown	Dyadic downsampling.
dyadup	Dyadic upsampling.
intwave	Integrate wavelet function psi.
orthfilt	Orthogonal wavelet filter set.
qmf	Quadrature mirror filter.
scal2frq	Scale to frequency.
wavefun	Wavelet and scaling functions.
wavemngr	Wavelet manager.
wfilters	Wavelet filters.
wmaxlev	Maximum wavelet decomposition level.

Wavelet Families
biorwavf	Biorthogonal spline wavelet filters.
cgauwavf	Complex Gaussian wavelet.
cmorwavf	Complex Morlet wavelet.
coifwavf	Coiflet wavelet filter.
dbaux	Daubechies wavelet filter computation.
dbwavf	Daubechies wavelet filter.
fbspwavf	Complex frequency B-Spline wavelet.
gauswavf	Gaussian wavelet.
mexihat	Mexican hat wavelet.
meyer	Meyer wavelet.
meyeraux	Meyer wavelet auxiliary function.
morlet	Morlet wavelet.
rbiowavf	Reverse biorthogonal spline wavelet filters.
shanwavf	Complex Shannon wavelet.
symaux	Symlet wavelet filter computation.
symwavf	Symlet wavelet filter.

Continuous Wavelet: One-Dimensional
cwt	Real or complex continuous wavelet coefficients 1-D.

Discrete Wavelets: One-Dimensional
appcoef	Extract 1-D approximation coefficients.
detcoef	Extract 1-D detail coefficients.
dwt	Single-level discrete 1-D wavelet transform.
dwtmode	Discrete wavelet transform extension mode.
idwt	Single-level inverse discrete 1-D wavelet transform.
upcoef	Direct reconstruction from 1-D wavelet coefficients.
upwlev	Single-level reconstruction of 1-D wavelet decomposition.
wavedec	Multilevel 1-D wavelet decomposition.
waverec	Multilevel 1-D wavelet reconstruction.
wrcoef	Reconstruct single branch from 1-D wavelet coefficients.

Discrete Wavelets: Two-Dimensional
appcoef2	Extract 2-D approximation coefficients.
detcoef2	Extract 2-D detail coefficients.
dwt2	Single-level discrete 2-D wavelet transform.
dwtmode	Discrete wavelet transform extension mode.
idwt2	Single-level inverse discrete 2-D wavelet transform.
upcoef2	Direct reconstruction from 2-D wavelet coefficients.
upwlev2	Single-level reconstruction of 2-D wavelet decomposition.
wavedec2	Multilevel 2-D wavelet decomposition.
waverec2	Multilevel 2-D wavelet reconstruction.
wrcoef2	Reconstruct single branch from 2-D wavelet coefficients.

Wavelet Packet Algorithms
bestlevt	Best level tree (wavelet packet).
besttree	Best tree (wavelet packet).
entrupd	Entropy update (wavelet packet).
wentropy	Entropy (wavelet packet).
wp2wtree	Extract wavelet tree from wavelet packet tree.
wpcoef	Wavelet packet coefficients.
wpcutree	Cut wavelet packet tree.
wpdec	Wavelet packet decomposition 1-D.
wpdec2	Wavelet packet decomposition 2-D.
wpfun	Wavelet packet functions.
wpjoin	Recompose wavelet packet.
wprcoef	Reconstruct wavelet packet coefficients.
wprec	Wavelet packet reconstruction 1-D.
wprec2	Wavelet packet reconstruction 2-D.
wpsplt	Split (decompose) wavelet packet.

Discrete Stationary Wavelet Transform Algorithms
iswt	Inverse discrete stationary wavelet transform 1-D.
iswt2	Inverse discrete stationary wavelet transform 2-D.
swt	Discrete stationary wavelet transform 1-D.
swt2	Discrete stationary wavelet transform 2-D.

De-Noising and Compression for Signals and Images
ddencmp	Default values for de-noising or compression.
thselect	Threshold selection for de-noising.
wbmpen	Penalized threshold for wavelet 1-D or 2-D de-noising.
wdcbm	Thresholds for wavelet 1-D using Birge-Massart strategy.
wdcbm2	Thresholds for wavelet 2-D using Birge-Massart strategy.
wden	Automatic 1-D de-noising using wavelets.
wdencmp	De-noising or compression using wavelets.
wnoise	Generate noisy wavelet test data.
wnoisest	Estimate noise of 1-D wavelet coefficients.
wpbmpen	Penalized threshold for wavelet packet de-noising.
wpdencmp	De-noising or compression using wavelet packets.
wpthcoef	Wavelet packet coefficients thresholding.
wthcoef	Wavelet coefficient thresholding 1-D.
wthcoef2	Wavelet coefficient thresholding 2-D.
wthresh	Perform soft or hard thresholding.
wthrmngr	Threshold settings manager.

Tree Management Utilities
allnodes	Tree nodes.
depo2ind	Node depth-position to node index.
drawtree	Draw wavelet packet decomposition tree (GUI).
dtree	Constructor for the class DTREE.
get	Get tree object field contents.
ind2depo	Node index to node depth-position.
isnode	True for existing node.
istnode	Determine indices of terminal nodes.
leaves	Determine terminal nodes.
nodeasc	Node ascendants.
nodedesc	Node descendants.
nodejoin	Recompose node.
nodepar	Node parent.
nodesplt	Split (decompose) node.
noleaves	Determine nonterminal nodes.
ntnode	Number of terminal nodes.
ntree	Constructor for the class NTREE.
plot	Plot tree object.
read	Read values in tree object fields.
readtree	Read wavelet packet decomposition tree from a figure.
set	Set tree object field contents.
tnodes	Determine terminal nodes.
treedpth	Tree depth.
treeord	Tree order.
wptree	Constructor for the class WPTREE.
wpviewcf	Plot wavelet packets colored coefficients.
write	Write values in tree object fields.
wtbo	Constructor for the class WTBO.
wtreemgr	NTREE object manager.

General Utilities
wcodemat	Extended pseudocolor matrix scaling.
wextend	Extend a vector or a matrix.
wkeep	Keep part of a vector or a matrix.
wrev	Flip vector.

Other
instdfft	Inverse nonstandard 1-D fast Fourier transform.
nstdfft	Nonstandard 1-D fast Fourier transform.
wvarchg	Find variance change points.

Wavelets Information
waveinfo	Information on wavelets.

Demos
wavedemo	Wavelet toolbox demos.

Obsolete Functions
dwtper	Single-level discrete 1-D wavelet transform (perodized).
dwtper2	Single-level discrete 2-D wavelet transform (perodized).
idwtper	Single-level inverse discrete 1-D wavelet transform (perodized).
idwtper2	Single-level inverse discrete 2-D wavelet transform (perodized).
maketree	Make tree.
plottree	Plot tree.
wdatamgr	Manager for data structure.

Reference

Alphabetical List of Functions