Re: Accurate edge detection?

On Jul 29, 11:55=A0am, Andrew_M <m...@[EMAIL PROTECTED]
> wrote:
> BTW, when I was working with restoring of diffracted images, I quickly
> realized, that interferention is in fact nonlinear effect. You
> actually measure only intensity of a vawe field, but sum of even two
> vectors doesn't meant, that lenght of a result will be equal to sum of
> lenghts of components.

This is true.

> But this is the nice sample of the fact, that complicate problems
> cannot be solved, using simple methods. Each method must be adequate
> to problem to be solved.

I agree. And this is a complicated problem. Although maybe you do not
have to deconvolve the whole image to estimate the edge position. If
you know you are dealing with a straight knife edge, it is a one-
dimensional problem if all other parameters are known.

illywhacker;