>  I don't remember the exact algorithm of bicubic filtering, but I faintly
>remember that it does not (necessarily) preserve the original colors of the
>pixels at the center of the pixels (as for example bilinear filtering does).

This site has some info on interpolation methods

http://astronomy.swin.edu.au/~pbourke/curves/

Try the interpolation methods link, it has info on linear, cosine, cubic,
and somehthing called Hermite interpolation. This Hermite interpolation
seems to allow you to give bias to the original data points. Take a look at
the page anyway if you're interested.

Rohan _e_ii

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