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Hi all,
Can you please tell me why I get different results than Matlab ?
**Python code:**
`cA, (cH, cV, cD) = pywt.dwt2(np.ones((6,6)), 'db8')`
**Matlab code:**
`[cA,cH,cV,cD] = dwt2(…
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For my periodization, I created two periods, aetas38012 and aetas38013.
Time sets aetas38012 and aetas38013 are chronologically very close, but with these small differences (which, nonetheless, I f…
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When computing dwt/wavedec/packet, the keyword "per" should refer to the "periodization" mode.
It would make a backward compatibility with the nigma/pywt version.
Example:
```python
from sci…
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This is an open PR on nigma's repo: https://github.com/nigma/pywt/pull/4
Leaving this here to remove it from #55.
aaren updated
7 years ago
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I've been using Mike Marino's ISWT routine with PyWavelets 0.2.2 for quite a while now. The function made it to PyWavelets 0.4.0, but its performance is significantly slower than with 0.2.2.
I extrac…
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why does pywt.dwt(np.arange(8),'db2') return two arrays of size 5 each? As far as I understand the DWT should always do a downsampling of size 2, no matter the length of the filter... Am I missing som…
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In my subfield (signal processing), it's common to see the full level wavelet transforms represented in a single array. This adds indexing ease and wavelet transforms tend to be treated as complete ar…
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Hello everybody and thanks for this great library.
I'm newbie in wavelets and have a question regarding SWT. I don't know if it's a bug or not, but why do I get some weird spikes at the end of sequenc…
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I would like to use the [CDF 9/7 wavelets](https://en.wikipedia.org/wiki/Cohen-Daubechies-Feauveau_wavelet) on a 1D signal. This is the test code I have, which doesn't work (i.e. the reconstructed sig…
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The following two snippets of code should be equivalent, I think:
```
import numpy as np
import pywt
a = np.random.randn(64,64)
w = pywt.Wavelet('bior3.3')
#w = pywt.Wavelet('db2')
#w = pywt.Wavelet…