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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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1.3.6
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Install
install.packages('LS2W')
Monthly Downloads
256
Version
1.3.6
License
GPL-2
Maintainer
Idris Eckley
Last Published
November 1st, 2022
Functions in LS2W (1.3.6)
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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.