NB this light-hearted alphabetical catalogue of wavelet names, heavy with French puns but with some intriguing insights, plus a rough'n'ready literature review (a lot less turgid than the Wikipedia articles) http://www.laurent-duval.eu/siva-wits-where-is-the-starlet.html It's on my list for serious study.
On Tue, Jan 9, 2018 at 4:48 PM, 'Skip Cave' via Programming < [email protected]> wrote: > Wavelet transforms were key to the improvement in compression for the > JPEG2000 > image encoding standard <https://en.wikipedia.org/wiki/JPEG_2000>. > > Skip > > Skip Cave > Cave Consulting LLC > > On Tue, Jan 9, 2018 at 10:27 AM, David Lambert <[email protected]> > wrote: > > > A score of years ago our mathematical simulation group heard a > > presentation on wavelets. The speaker somehow used wavelets to choose > from > > the available coffee beans the ratios of varieties to produce particular > > desirable flavors. The coffee company wanted truth from > > > > assert (ARABICA ([: =&taste mix) INVENTORY) > > > > > > Incidentally, 13!:8 raises an error, which may help with recent tail > > recursion issues. > > > > assert > > 0 0 $ 13!:8^:((0 e. ])`(12"_)) > > > > Gotta love the 13!: adverb association with errors. > > > > Date: Mon, 8 Jan 2018 21:06:26 -0500 > >> From: Raul Miller<[email protected]> > >> To: Programming forum<[email protected]> > >> Subject: Re: [Jprogramming] Haar wavelet > >> Message-ID: > >> <CAD2jOU-C56U8AEM7OLtgkPBX207ZQSgxOUQU+v187yrachMGOA@mail. > >> gmail.com> > >> Content-Type: text/plain; charset="UTF-8" > >> > >> Actually, I was thinking of moving on to other wavelets, Like, > >> forinstance, the Hadamard transform, whose normalized matrix was > >> > >> Kp=: (%%:2) * ,/@:(,./"3)@:(*/) > >> H1=: 1 1,:1 _1 > >> Hm=: H1&Kp@]^:[&(,.%:2) > >> > >> That said, I still haven't figured out a use for these things... > >> > >> Thanks, > >> > >> -- Raul > >> > > > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
