Re: [APML]: Star Trailing Reduced by Image Processing

["Philip Perkins" <philip@astrocruise.com>]

The Astro-Photography Mailing List
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> I know that most of you throw away astrophotos with trailing but
> here's an image processing approach which can reduce it:
> 
> http://www.webcom.com/af9y/trails.htm
> 
> There is some compromise but I think the star trails look worse.
> (Still no substitute for proper alignment and tracking)

Mike,

Very interesting technique, but didn't the result smear the actual image? 

As you say, there's no substitute for proper tracking, however this is an 
interesting app note for PW that may have other uses..

Many thanks
--Philip

Philip Perkins  --  philip@astrocruise.com
51 27'N 1 36'W  --  Wiltshire, UK
43 54'N 5 32'E  --  Luberon, France
Astrocruise     --  http://www.astrocruise.com