how to create integer to integer wavelet transform

PyWavelets / pywt

PyWavelets - Wavelet Transforms in Python

http://pywavelets.readthedocs.org

MIT License

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how to create integer to integer wavelet transform #566

Closed koujiangheng closed 4 years ago

koujiangheng commented 4 years ago

how to create integer to integer wavelet transform using current pywavelet lib?

grlee77 commented 4 years ago

Hi @koujiangheng, I see you already closed this, but will still answer briefly.

In short, you cannot perform an integer to integer wavelet transform with PyWavelets. I think these are typically implemented with a wavelet lifting transform which we do not currently have an implementation for (all DWT/SWT functions implemented use convolution with FIR filters having floating point coefficients).