Talk:Integral transform

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what is the discrete analog of the integral transform? the summation transform? - Omegatron 14:55, Sep 30, 2004 (UTC)

in a way Fourier series is a discrete analogy, in that it maps to a discrete span of functions. --anon

(Disclaimer: I am not a native english speaker, so the following remark might be false.) One can find the word "integral transform" as well as "integral transformation" in the literature. I tried to figure out the appropriate meanings with the following result: These words should be used as in "The Laplace transformation L associates to a function f its Laplace transform Lf". If this is correct, the page should be adjusted. Th. Bliem. --134.95.214.156 08:57, 17 October 2005 (UTC)

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I find the section on orthogonality to be useless or incorrect. It speaks of basis functions, which are undefined and not obviously related at all to general integral transforms. It refers to the kronecker delta, when I think it means dirac; but it would still be wrong because it should be delta(y-5)*delta(x-3) - not any scaling. If people agree, we should just get rid of it.

[edit] Helpful for a layperson

I found the exposition here extremely clear, and the links very helpful. It gave me context I needed for digital signal processing without overwhelming me with the mathematics.

Dana Good 71.112.107.85 16:18, 28 March 2007 (UTC)