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LS2W (version 1.3.6)

Locally Stationary Two-Dimensional Wavelet Process Estimation Scheme

Description

Estimates two-dimensional local wavelet spectra.

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Version

Install

install.packages('LS2W')

Monthly Downloads

251

Version

1.3.6

License

GPL-2

Maintainer

Idris Eckley

Last Published

November 1st, 2022

Functions in LS2W (1.3.6)

PhiJ

Compute discrete autocorrelation scaling function.
Psi1Dname

Return a PsiJ list object style name.
LS2Wsim

Generic method for simulation of LS2W processes
LS2Wsim.cddews

Simulate an LS2W process with underlying Daubechies wavelet.
Haar2MA.horiz

Generate 2-D Haar MA process (horizontal direction).
HaarMontage

Generate a 2-D Haar MA process.
Phi1Dname

Return a PhiJ list object style name.
Psi2Dname

Return a D2ACW list object style name.
LS2W-package

Estimates the locally stationary wavelet spectrum for locally stationary 2-D wavelets processes
Haar2MA.vert

Generate 2-D Haar MA process (vertical direction).
example.ls2w

Example of how the LS2W package can be used in texture analysis
getdata

Extracts detail coefficients from imwd object
imwd

Two-dimensional wavelet transform (decomposition).
cdtoimwd

Convert a cddews type object to an imwd type object
cddews

Compute the local wavelet spectrum estimate
PsiJ

Compute discrete autocorrelation wavelets.
imwr.imwd

Inverse two-dimensional discrete wavelet transform.
print.cddews

Print out information about a cddews object in readable form.
packetj

Converts an imwd object to a wst2D object at a given level.
convertimwd

Convert a non-decimated imwd object to a wst2D object.
threshold.imwd

Threshold two-dimensional wavelet decomposition object
sample.stats

A function to calculate sample statistics for textured images using LS2W
specplot

Plot the LWP associated with a cddews object
summary.cddews

Use summary on a cddews object
AvBasis.wst2D

Perform basis averaging for (packet-ordered) 2D non-decimated wavelet transform.
A2name

Return a D2Amat list object style name.
D1Amat

Inner product matrix of ac wavelets(1-D)
DWEnv

Environment containing precomputed objects.
A

Examples of textured images
Haar2MA.diag

Generate 2-D Haar MA process (diagonal/vertical/horizontal direction).
D2Amat

Creates the A matrix required for analysing LS2W processes.
D2autoplot

Plots a two-dimensional autocorrelation wavelet.
D2ACWmat

Compute 2-D discrete autocorrelation wavelets but return in array form.
D2ACW

Compute 2-D discrete autocorrelation wavelets.