Comments on: 2D CDF 9/7 Wavelet Transform in Python

By: olhovsky

olhovsky — Thu, 08 Oct 2009 17:17:06 +0000

I’ve edited the code as per your suggestion, thanks Chris.

By: Chris Murphy

Chris Murphy — Wed, 07 Oct 2009 21:45:23 +0000

Hi,
Could you please add an explicit license for this code, or declare that you release it to the public domain?

Thank you,
Chris

By: olhovsky

olhovsky — Fri, 26 Jun 2009 17:13:33 +0000

You can trust the coefficients on wikipedia at the time of posting this. The coefficients I used in my python code are also correct, and mine have more precision (which won’t matter unless you use 64 bit floats).

By: GERAUD BOUSQUET

GERAUD BOUSQUET — Sat, 09 May 2009 09:51:11 +0000

Hi !

I am interested in the implementation of CDF 9/7 in RealBasic to use it for denoising pictures in my softwar SeamlessMaker (http://www.hypatiasoft.fr). I have already writen all subroutines it for Haar’s wavelets but the results are not very good. Can I use the same subroutines for CDF 9/7 just changing the High pass and lowpass filters ? Can I trust in these coefficients : http://en.wikipedia.org/wiki/Cohen-Daubechies-Feauveau_wavelet ?

Thanks in advance.

Géraud Bousquet