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Old 15-12-2005, 02:31 PM
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ballaratdragons (Ken)
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First Toucam of Venus

I have finally decided to try run my first (and only) Avi of Venus through Registax & P/Shop.

I took the Avi 2 weeks ago and the final video is absolutely disgusting! The Planet is a mass of glowing light and dances all over the place, so I stuck it to the side as a bad image.

Well, I gave it a go at processing and was pleasantly suprised!!!!
When I zoom in I can actually see surface features but the image is heavily pixelated, so I have left it as a small image to make it a bit crisper. Not sure what the dark image on the right of the Planet is?

I will never discard a wobbly dancing Avi again!!!!

GS f5 12" Dob, no tracking, TouCam Pro, Prime Focus, Registax of 180 frames, PhotoShop. Brightness down to 20%, contrast up to 60%.
Transparency: 10/10 - Seeing: 8/10. Fairly windy, Temp: 18 degrees.

Comments welcome.
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  #2  
Old 15-12-2005, 02:51 PM
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ving (David)
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you just never know what you are going to get do ya....
on ya ken thats a fine crescent
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  #3  
Old 15-12-2005, 02:59 PM
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Thanks David.

I would love to be able to get rid of the pixelling though! Really spoils images.
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Old 15-12-2005, 03:14 PM
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yeah no idea what to do there...
once i get imaging maybe.
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Old 15-12-2005, 03:23 PM
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asimov (John)
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Nice one Ken....I dunno what to make of this pixel problem you have with your toucam.
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  #6  
Old 15-12-2005, 03:28 PM
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I am currently transferring the Avi Movie from the lappy to the desktop to give it another go in Registax in the desktop. See if it makes any difference. I will post it when done!
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Old 15-12-2005, 03:31 PM
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ballaratdragons (Ken)
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The first stage in Registax is the alignment box. Should I have it set on 32, 64, 128 or 256?

Having it set at the wrong size may be causing the pixellation.
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Old 15-12-2005, 03:59 PM
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As long as the square covers the planet, it should be ok. The bigger it is the more accurate....but takes longer to process. (or so I read)
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Old 15-12-2005, 04:35 PM
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ballaratdragons (Ken)
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Thanks Asi,

I have just reprocessed in Registax on this desktop pooter (which really shouldn't make any difference) and it came out heaps better!

I will post an extreme close up which did not pixelate very much and you can see the surface features I was talking about. I hope it works when I press 'Post'.
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Old 15-12-2005, 04:43 PM
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Cool. That's better!
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  #11  
Old 15-12-2005, 04:51 PM
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ballaratdragons (Ken)
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I used the same settings
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Old 15-12-2005, 11:13 PM
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ballaratdragons (Ken)
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I was reading in another thread about picking out frames & limiting frames from an Avi.

Huh?

Coz there were some really bad ones in the pic above that I would've like to have left out. But didn't know I could.
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Old 15-12-2005, 11:19 PM
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On Venus I stick with pretty short AVIs. My last lot was about 200 frames long & I hand picked only 20 of the best out & stacked 'em.
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  #14  
Old 15-12-2005, 11:23 PM
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That's what I mean, you only picked 20! How did you pick them out. When I run Registax it runs and stacks the whole Avi. I don't know how to delete particular frames.

I am also thinking that what I called surface features in the pic above are probably some sort of effect from waveletting. I had a look at some Venus photos and they don't even look similiar, so they are probably not really surface features at all.

Pity, coz I got excited when they showed up!

Last edited by ballaratdragons; 16-12-2005 at 01:35 AM.
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  #15  
Old 16-12-2005, 07:04 AM
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Hi Ken, when you run Registax what quality percent are you using. I vary this and just keep repeating the alignment phase and see how many frames it ends up selecting. If you only want a few then set it high 85-90% and see what you get. Once you've gone through the Optimise step and moved on to the stack phase (before hitting the button to stack) you also have some tabs at far right. The stack graph you can grab the sliders and pull then down or left and thus cut out more frames - the bottom bar will tell you how many. There is also a stack list tab (I think) where you can then manually select and deselect frames. The key to accessing all this is to do one stage at a time, eg just "optimise" not the "optimise and stack" button otherwise it will just charge on ahead.

Failing that you may have seen that thread I started recently on better planetary images through using Virtual Dub. This allows you to scan through your avis manually and delete bad frames and then resave for stacking in registax. Iceman posted a link in that thread to the Virtual Dub site where you can download it for free.

cheers,
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  #16  
Old 16-12-2005, 09:15 AM
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Hi Ken,

Nice Venus shot you got there. You might want to try a shorter exposure time, not
sure how you do that on a webcam. But it does look a lil over exposed and that can
cause pixcelation. I very rearly use registax if at all, but I do remember like Robert
above has mentioned you can de-select images when you first load your series of
images or avi.

regards,CS
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  #17  
Old 16-12-2005, 12:41 PM
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ballaratdragons (Ken)
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Hi Robert, I tried the suggestions you made.

From 170 frames down to 73. and re-aligned and optimised several times. Thanks for the help.
This is the best I can get it.
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  #18  
Old 16-12-2005, 12:47 PM
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that looks alot cleaner ken.

rob, you can take a single shot rather than and avi. is this what you mean?
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  #19  
Old 16-12-2005, 12:53 PM
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ballaratdragons (Ken)
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Quote:
Originally Posted by ving
that looks alot cleaner ken.
Ta David. Yeah, it's getting there. There are so many buttons & levels & do-hickies to set!!!!

Doesn't help with a terrible original Avi either
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  #20  
Old 16-12-2005, 01:28 PM
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http://registax.astronomy.net/html/download.html

Go here for the instructions. (PDF)
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