You are wrong. The problem you get without oversampling is the information you dont have, and that is the information between the pixels. The lacking information gives multiple solutions and those produce several harmonic spatial frequencies. That's why DA converters etc use a lot of tricks to avoid folding, to reduce the number of unwanted solutions. Oversampling is a very simple approach, and is what you get if you have more pixels than necessary.
I know it sounds strange, but I haven't got the time so you'll have to read some Nyquist on you own. DagT > fra: "Herb Chong" <[EMAIL PROTECTED]> > dato: 2005/09/30 fr PM 12:44:50 CEST > til: <[email protected]> > emne: Re: Pentax Future? What's next for Pentax... > > if the lens already bandlimits the signal, it's already doing the > antialiasing. more pixels won't render any more information nor prevent > aliasing any better. > > Herb.... > >
