Re: Lanczos interpolation

If you examine the frequency response function of the three window 
treatments mentioned, you will see why the Lanczos window is preferred.
Also do a google search for "Gibbs" phenomena.

[EMAIL PROTECTED] wrote:

> I'm trying to find out why a Lanczos window is often used for sinc
> interpolation of digital images.  Why not some other window, such as a
> Hamming or Hanning window?  Does the Lanczos window have some magical
> properties that make it specially suitable for images?
>
> Thanks,
> Andrew.