Gregory Lee

Results 318 comments of Gregory Lee

Looks interesting, but not something I have experience with. There is an R port of that Matlab toolbox that is under an incompatible LGPL-2 license (https://cran.r-project.org/web/packages/SynchWave/index.html). Let's see wait and...

> This is great news! I was planning to port such library in Python (or at least part of it). Now that there is a license I think it should...

Hi @LaurentRDC I have not looked at the specifics of your implementation, but I think there is definitely sufficient interest. The main potential blocker for inclusion here would be licensing....

Yes, you are correct that the matrix representation for these other boundary modes is not square (so not orthogonal). I do not think it is possible to perform perfect reconstruction...

> Do you have by any chance a link to a paper explaining why? Not offhand. I think this is covered in some textbooks, possibly in the one by Strang...

> Regarding #473 , do you think it would make sense to also directly provide in the API the adjoint operator, rather than letting the user code it? I would...

> Also, I actually have one last question on this topic: why can only the periodic padding be used for an orthogonal transform ("periodization" mode)? Is there a theoretical reason...

I think contourlets would be a good addition. I have seen them used mainly for image denoising or as a sparsifying transform in the context of compressed sensing image reconstruction...

Hi @lukepfister . Now that we have released v0.30 and moved PyWavelets to its new [home](https://github.com/PyWavelets/pywt), we are starting to add new features and performance enhancements. Are you still interested...

Not contourlets specifically, but there is an existing port of the 2D shearlet functions from Shearlab at [pyshearlab](https://github.com/stefanloock/pyshearlab). I believe the license terms are incompatible with including it directly in...