Re: Accurate edge detection?

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 why I cannot finally get rid of the
rest of diffracted image. Reverting non-linear ops is not such a
simple task and usually require sequence of iterations. I did them and
as a result got better (more contrast) result. I'm just about to put
it at                   http://www.smartfills.com/Html/Images/diffr3.jpg
.. In any event, interesting problem. I was surprised by myself, when I
got restored image. I thought, that such a quality is impossible to
get. 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.