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

["Serge Theberge" <serge.theberge@wti.on.ca>]

Philip,

Very impressive!!!  I didn't think that there would be so much of a
difference! I am definitely going to try out your technique.

Regards,

Serge

> -----Original Message-----
> From: astro-photo-bounces@seds.org 
> [mailto:astro-photo-bounces@seds.org] On Behalf Of Philip Perkins
> Sent: Sunday, November 30, 2003 2:26 PM
> To: Discussion of Film Astrophotography
> Subject: RE: [APML] OT: Experiments with Lunar/Planetary 
> Webcam image stacking
> 
> 
> 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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