Dear all
Thanks for the nice toolbox! Currently, I’m using wavedec3 for multi-level 3D wavelet decomposition. Right now, when level > 1, the output includes only the 7 detail subbands per level:
aad, ada, add, daa, dad, dda, ddd
(each at their respective scales)
However, for some cases, it would be very useful to also have access to the approximation / low-pass coefficients (aaa) at every intermediate level, not only the final coarsest approximation, i.e. a way to return all aaa coefficients for each level when level > 1, e.g. something like:
- level 1:
aaa, aad, ada, add, daa, dad, dda, ddd
- level 2:
aaa, aad, ada, add, daa, dad, dda, ddd
- ...
- level L:
aaa, aad, ada, add, daa, dad, dda, ddd
One idea would be to add an optional flag to wavedec3, for example:
aaa_per_level: bool = False (default keeps current behavior)
When True, include the aaa coefficients for each level in the returned structure.
Regarding the output structure: one possibility could be:
- keep the current structure, and
-
- add an
"aaa" entry alongside the existing 7 keys in each level’s dictionary/list element
Is there any chance to add this feature?
Thanks a lot!
Dear all
Thanks for the nice toolbox! Currently, I’m using
wavedec3for multi-level 3D wavelet decomposition. Right now, whenlevel > 1, the output includes only the 7 detail subbands per level:aad,ada,add,daa,dad,dda,ddd(each at their respective scales)
However, for some cases, it would be very useful to also have access to the approximation / low-pass coefficients (
aaa) at every intermediate level, not only the final coarsest approximation, i.e. a way to return allaaacoefficients for each level whenlevel > 1, e.g. something like:aaa,aad,ada,add,daa,dad,dda,dddaaa,aad,ada,add,daa,dad,dda,dddaaa,aad,ada,add,daa,dad,dda,dddOne idea would be to add an optional flag to
wavedec3, for example:aaa_per_level: bool = False(default keeps current behavior)When
True, include theaaacoefficients for each level in the returned structure.Regarding the output structure: one possibility could be:
"aaa"entry alongside the existing 7 keys in each level’s dictionary/list elementIs there any chance to add this feature?
Thanks a lot!