RE: [APML] OT: Experiments with Lunar/Planetary Webcam image stacking

[Philip Perkins <pgp@astrocruise.com>]

Gary, Serge, Ray,

Thanks for your feedback.  I have put up a quick comparison of results 
obtained with this technique, Registax, and K3CCD:
http://www.astrocruise.com/misc/l_processing.htm

I would hesitate from saying that the Registax and K3CCD results are the 
very best that could be obtained, however I tried pretty hard over a period 
of 2 months, after studying quite a few articles.  I think that the 
Registax one is pretty close, but the K3CCD result could probably be 
further optimised - notice there was also a mistake in selecting the frame 
area for processing - this would have been corrected if I had decided to 
publish it.  I don't have a similar comparison for Clavius - I processed 
that later and used only the new technique.

Ray, thanks for the link.  I think that both of these programs are 
excellent, especially since they free.  (AVIedit is not free).  I think the 
only real question is the one I put earlier:  whether mathematics alone 
(FFT) is enough to select the best frames, bearing in mind that the images 
suffer from a combination of blurring and non-linear scaling 
distortions?  The rest of what I said was just a description of the technique.

Regards
--Philip


At 12:58 30/11/2003 -0500, you wrote:
>Hi Philip,
>
>I can't comment on your procedure as I am still new to this game.  However,
>I would find it useful if you could post additional pictures of Clavius for
>quality comparison: for example, one of the best raw data pictures, the
>Registax-processed picutre, and the K3CCD-processed picture.
>
>Regards,
>
>Serge

>Philip,
>Since the owners of the two programs you mentioned are full time 
>participants on this web site you might get a much better answer to your 
>questions. QCUIAG@yahoogroups.com
>They are both very helpful and interested in helping.
>Good Luck
>Ray Rochelle


Philip Perkins
<pgp@astrocruise.com>
Wiltshire UK & Luberon France
http://www.astrocruise.com


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