Gibbs phenomenon

On 10 May, 22:13, "SEngel" <khr...@yandex.ru> wrote:
> >On 10 May, 14:00, "SEngel" <khr...@yandex.ru> wrote:
> >> Hi!
>
> >> I am working over high quality image processing algorithms (image
> shifts,
> >> image rotation, etc). I am trying to use 1D sinc interpolation, but it
> >> produces Gibbs artifacts.
>
> >Have you tried to use splines for interpolation?
>
> >Rune
>
> No. I have tried only polynomial approximations. Do you think splines are
> more effective than sinc?  

I think splines are easier to control for artifacts. Sinc
interpolation
is a very restrictive class of interpolations. It is used in time
series
processing  because it can be easily implemented with some
zero-stuffing and a filter. That doen't mean it is good for other
problems, under other technology constraints.

Rune