RE: Focus indication

["Creager, Robert S" <CreagRS@LOUISVILLE.STORTEK.COM>]

Lovely.  Thanks for all the ideas folks.  I believe I'll start simple, with
Michael R's stepping +- the centroid in x,y, and maybe +-45 to see what
happens.  If that doesn't provide what Tom wants, I'll go to 1d gaussian
fitting, as that gets me both Michael's/Arne's marginal fitting and Chris's
radial profile.  Then we'll move on to Doug's 2d fitting.

Andrew, are you then interpolating with 3rd order splines, since the 4th
order was too painful?

Anyone have thoughts on how to determine when the "background tail is
wagging the star-dog" for Michael's method?  Since I'm not going to present
information on an individual star basis, but rather a mean of a subset of
behaved data, this might not be an issue.

Robert Creager
Senior Software Engineer
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