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dmey wavelet not accurate enough #261

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rgommers opened this issue Dec 29, 2016 · 2 comments
Open

dmey wavelet not accurate enough #261

rgommers opened this issue Dec 29, 2016 · 2 comments
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@rgommers
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62 coefficients is not enough for accurate roundtripping (Matlab uses 102 coeffs), see https://groups.google.com/forum/#!topic/pywavelets/W3jFXbTNwrk for details

@rgommers rgommers added the bug label Dec 29, 2016
@holgern
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holgern commented Apr 19, 2017

rafat/wavelib@318e9b0

Here are 102 coeffs available. But no reference given, from where the coefficients are taken.

@holgern
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holgern commented Apr 19, 2017

In this paper, it is shown that 66 FIR coefficients are sufficient:
https://ccrma.stanford.edu/~dattorro/Wavelet.pdf

But, no coefficients are listed. Only the method how to compute them...

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