# Locally Stationary Two-Dimensional Wavelet Process Estimation Scheme

## Documentation for package ‘LS2W’ version 1.3.7

- DESCRIPTION file

## Help Pages

LS2W-package | Estimates the locally stationary wavelet spectrum for locally stationary 2-D wavelets processes
A | Examples of textured images
A2name | Return a D2Amat list object style name.
AvBasis.wst2D | Perform basis averaging for (packet-ordered) 2D non-decimated wavelet transform.
B | Examples of textured images
C | Examples of textured images
cddews | Compute the local wavelet spectrum estimate
cdtoimwd | Convert a cddews type object to an imwd type object
convertimwd | Convert a non-decimated imwd object to a wst2D object.
D1Amat | Inner product matrix of ac wavelets(1-D)
D2ACW | Compute 2-D discrete autocorrelation wavelets.
D2ACWmat | Compute 2-D discrete autocorrelation wavelets but return in array form.
D2ACWmat.d | Compute 2-D discrete autocorrelation wavelets but return in array form.
D2ACWmat.l | Compute 2-D discrete autocorrelation wavelets but return in array form.
D2Amat | Creates the A matrix required for analysing LS2W processes.
D2autoplot | Plots a two-dimensional autocorrelation wavelet.
DWEnv | Environment containing precomputed objects.
example.ls2w | Example of how the LS2W package can be used in texture analysis
getdata | Extracts detail coefficients from imwd object
Haar2MA.diag | Generate 2-D Haar MA process (diagonal/vertical/horizontal direction).
Haar2MA.horiz | Generate 2-D Haar MA process (horizontal direction).
Haar2MA.vert | Generate 2-D Haar MA process (vertical direction).
HaarMontage | Generate a 2-D Haar MA process.
imwd | Two-dimensional wavelet transform (decomposition).
imwr.imwd | Inverse two-dimensional discrete wavelet transform.
LS2W | Estimates the locally stationary wavelet spectrum for locally stationary 2-D wavelets processes
LS2Wsim | Generic method for simulation of LS2W processes
LS2Wsim.cddews | Simulate an LS2W process with underlying Daubechies wavelet.
packetj | Converts an imwd object to a wst2D object at a given level.
Phi1Dname | Return a PhiJ list object style name.
PhiJ | Compute discrete autocorrelation scaling function.
print.cddews | Print out information about a cddews object in readable form.
Psi1Dname | Return a PsiJ list object style name.
Psi2Dname | Return a D2ACW list object style name.
PsiJ | Compute discrete autocorrelation wavelets.
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
threshold.imwd | Threshold two-dimensional wavelet decomposition object