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
