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How to get approximation coeff. Of WT of all levels

Basically at level 5, cA4 decomposition on one level yields cA5 and cD5. This applies to all levels. Hence, you have all information for cA4 if you recompose one wavelet level from cA5 and cD5.
Laurent Duval's user avatar
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Extract approximation and detail coefficients

How do you get the rest of the approximation coefficients? The pywt.wavelt only gives the highest level of the approximation coefficients (if level is set to 5 we ...
Syrine's user avatar
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