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From: "Bruno Luong" <b.luong@fogale.fr>
Newsgroups: comp.soft-sys.matlab
Subject: Re: how to reverse windowing effect?
Date: Wed, 21 May 2008 07:02:03 +0000 (UTC)
Organization: FOGALE nanotech
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In the ideal world, reverse windowing effect could be
possible, and what people calls "deconvolution".

Convolution is multiply the signal with the kernel (windows
- flipped if you are purist) in the frequency domain.
Deconvolution consists thus of dividing the signal by the
kernel, in the frequency domain of course.

Deconvolution is an "ill-posed" problem, and must be treated
with care. Adding a regularization term is one way. One of
the technique for e-blurring image is deconvolution.

Bruno