Wavelets.jl

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Wavelet filter definitions

5

Implementing https://github.com/JuliaDSP/Wavelets.jl/pull/42, I noticed filter definitions are different in this package than in at least one other wavelet package I've used (`wmtsa` in R). The code below plots the equivalently-named...

ElOceanografo

Document coefficient vector layout

4

I a hope I am not missing anything but I could not find the layout of the coefficient vector. Inspecting the size of the coefficient also does not immediately suggest...

mschauer

Normalization of Battle-Lemarie filters and symlets

3

Wavelet filters are typically scaled to have unit energy and sum to sqrt(2.0); this simplifies a number of equations and transforms. So why are these wavelet families different? # Battle-Lemarie...

jpjones76

Adjoint or transpose for CDF 9/7 basis

3

Since the CDF 9/7 basis is not orthogonal, the inverse transform matrix is not the adjoint (or transpose) of the forward transform matrix. Would it be possible to modify the...

sparrowhawker

Potential use of fast continous wavelet transform?

1

Hi! I recently was reading about wavelets, and I noticed that just recently there was a paper ([and corrisponding code](https://github.com/fastlib/fCWT)) on an implementation of the continous wavelet transform that had...

smj-edison

Running the example code `transform1d.jl` results in the error message `MethodError: no method matching wavelet(::Wavelets.WT.CDF{9, 7}, ::Wavelets.WT.FilterTransform) ` occurring for the line ``` wavelet(WT.cdf97, WT.Filter) ```

LRBaalmann

Question - DWT 3D Wavelet Coefficients Organization

4

I'm trying to implement a soft thresholding method for 3D data which preserves scaling (or approximation) coefficients at each level, then soft thresholds all others. Unfortunately, I have been having...

ktaswell

quincunx

1

Is it possible to add quincunx bases to obtain nonseparable transforms? Separable 2D transforms have directional-amplification artifacting. (_I have not been able to get a handle on the rotation maths...

PattiMichelle

Use Julia setup `latest` instead of `v1`

1

spares us from more dependabot requests later... This should be preferable to #90

JeffFessler

Bump julia-actions/setup-julia from 1 to 2

1

Bumps [julia-actions/setup-julia](https://github.com/julia-actions/setup-julia) from 1 to 2. Release notes Sourced from julia-actions/setup-julia's releases. v2.0.0 - Update to Node20 What's Changed update to node20 by @​ranocha in julia-actions/setup-julia#209 Note the rationale for...

dependabot[bot]