Re: Fourier transform obsolete?


<mrdarrett@xxxxxxxxx> wrote in message
news:1155148622.162640.80030@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I vaguely remember the Gibbs phenomenon when studying partial
differential equations many years ago, and while they disturbed me a
bit at the time, I ignored the "ringing" in order to concentrate on
studying for my exams.

Today, with wavelet transforms which don't seem to suffer from the
Gibbs phenomenon, is the Fourier transform obsolete...?!

The JPEG2000 standard uses wavelets, but I hear different stories about
which produces better pictures (the dog-bowl images on wikipedia
actually show a slightly blurrier image for the wavelet-encoded image):
http://en.wikipedia.org/wiki/Jpeg2000

Michael


checkout 3 dimensional F transforms too.


.

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