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Go Back   IceInSpace > Beginners Start Here > Beginners Astrophotography

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  #1  
Old 03-04-2012, 10:11 AM
Poita (Peter)
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Any interest in more planet videos/stacks to process?

I caught some decent colour video of Saturn last night, just wondering if there is any interest in uploading it for others to practive processing on?
About 5000-8000 frames or so.

A quick stack from each is attached.

If there is any interest I'll upload them, it takes a few hours, so let me know.
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Click for full-size image (bigsat.jpg)
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Click for full-size image (bigsatsharp.jpg)
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  #2  
Old 03-04-2012, 10:31 AM
luigi
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Very nice photos Peter, I can try my luck at processing if you upload the vids. It's cloudy here so what else can I do ? :-)
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  #3  
Old 03-04-2012, 10:34 AM
Poita (Peter)
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I'll start the process then, it will take a few hours, so I'll post a link once they are done.
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  #4  
Old 03-04-2012, 10:46 AM
Poita (Peter)
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The PNG file (the blurry one) is the result of a stack and is in 16 bit, so you can load it into registax and have a play with wavelets or deconvolution while waiting for the .avi to upload, it will be about 4 hours according to dropbox!

Anyone know of a faster online storage system for files of over a GB in size?
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  #5  
Old 03-04-2012, 02:19 PM
Poita (Peter)
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http://dl.dropbox.com/u/7231471/y800...3-17_castr.avi

If you click on that link the 1.4GB avi file will download and you can process Saturn to your heart's content.
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  #6  
Old 03-04-2012, 04:14 PM
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This is a great idea Peter, I'll also have a play around. Need to hone my skills so I can too get decent stacks for Saturn
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  #7  
Old 03-04-2012, 08:41 PM
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Forgey (Paula)
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Thanks for uploading these Peter, being and newbie at planetary imaging its good to experiment and develop my skills.
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  #8  
Old 03-04-2012, 09:16 PM
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Had a play with the saturn image while i waiting for the video to download.
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  #9  
Old 03-04-2012, 09:18 PM
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I would love to have a go but I am unable to download the files for some reason. How long does it take you do download Peter's files?

Cheers

Eric
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  #10  
Old 03-04-2012, 09:29 PM
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Quote:
Originally Posted by EricB View Post
I would love to have a go but I am unable to download the files for some reason. How long does it take you do download Peter's files?

Cheers

Eric
Im still downloading it, about 1hr 30min
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  #11  
Old 03-04-2012, 10:55 PM
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Finally downloaded the video and had a go.

About 4500 frames stacked and processed in registax
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  #12  
Old 04-04-2012, 02:38 AM
luigi
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Thank you for the data!

Here's my result:

I used Registax6 with linked wavelets and then Photoshop.
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  #13  
Old 04-04-2012, 09:21 AM
Poita (Peter)
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I like the colours Paula, you might be able to stretch the histogram a bit more to give it a bit more punch.

Luigi, well done, your stack is better than mine (I didn't choose enough alignment points). I reckon you could sharpen it up a bit more with the wavelets.

Ivan was kind enough to share his Saturn processing steps, you could try a wavelet setup similar to his and see how it goes.

Like me he does his stacking in Autostakkert, he uses more alignment points than I do and gets great results:

http://www.iceinspace.com.au/forum/a...9&d=1333432789

Then loads the final image into Registax
http://www.iceinspace.com.au/forum/a...0&d=1333432789

and applies the following wavelet settings to sharpen it up.

http://www.iceinspace.com.au/forum/a...1&d=1333432789

You may want to try his procedure and see how you go.

Autostakket is free and can be downloaded here:
http://www.astrokraai.nl/wp/download/

Or you can do the whole thing in registax, and just try Ivan's wavelet settings.
Ivan, Asimov (John) and Damian Peach use Autostakkert for the stacking part, and that is a good set of references, so I reckon it would be worth anyone's time to give it a go.
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  #14  
Old 04-04-2012, 05:29 PM
Robert3000 (Rob Carew)
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Thanks for such helpfull information and links. There is always more software to discover !

Rob
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  #15  
Old 05-04-2012, 08:09 PM
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I've had a go at processing the AVI. I must say, it's harder work with ordinary data like this. So, I'd suggest if you can get a result you are happy with from difficult data like this, then you will be thrilled when you capture some magic data on those elusive night of good seeing!

Here's a screen capture of the AS!2 alignment points and settings:

Click image for larger version

Name:	AS.jpg
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ID:	112622

Here's a screen capture of the R6 settings:

Click image for larger version

Name:	R6.jpg
Views:	6
Size:	141.0 KB
ID:	112623

Here's what the Gimp processing looks like:

Click image for larger version

Name:	Gimp.jpg
Views:	5
Size:	112.7 KB
ID:	112624

And here's the final result:

Click image for larger version

Name:	Saturn_3m_mask.png
Views:	14
Size:	45.0 KB
ID:	112625

-Ivan
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  #16  
Old 05-04-2012, 08:50 PM
luigi
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Here's a new version with a little more detail (I think).

I used Registax and Photoshop.
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  #17  
Old 05-04-2012, 09:31 PM
Poita (Peter)
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Quote:
Originally Posted by lepton3 View Post
I've had a go at processing the AVI. I must say, it's harder work with ordinary data like this. So, I'd suggest if you can get a result you are happy with from difficult data like this, then you will be thrilled when you capture some magic data on those elusive night of good seeing!

Here's a screen capture of the AS!2 alignment points and settings:

Attachment 112622

Here's a screen capture of the R6 settings:

Attachment 112623

Here's what the Gimp processing looks like:

Attachment 112624

And here's the final result:

Attachment 112625

-Ivan
Thanks for the detailed processing steps.
Sadly, that is the best seeing we've had here in months, it is usually much worse!
Part of this exercise was to hopefully get some expert processing applied to average data to see what could be done. Also to let people know what they can expect from their captures and know whether to blame the data/capture or the processing for the results!
I'm hoping to get some good data in Armidale.
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  #18  
Old 05-04-2012, 10:22 PM
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lepton3 (Ivan)
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Quote:
Originally Posted by luigi View Post
Here's a new version with a little more detail (I think).
Hi Luigi,

I liked your first one better. Even though this does have more detail, the smoother appearance of the first one is nicer, I think.

Both very nice results. With that technique, now all you need is some special data!

-Ivan
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  #19  
Old 05-04-2012, 10:35 PM
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lepton3 (Ivan)
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Quote:
Originally Posted by Poita View Post
..Part of this exercise was to hopefully get some expert processing applied to average data to see what could be done. Also to let people know what they can expect from their captures and know whether to blame the data/capture or the processing for the results!
I'm hoping to get some good data in Armidale.
Peter, you're doing a good thing. It's worth practicing on difficult data.

And it's also worth trying on every opportunity to get good data. I reckon you will have noticed that most of the leading planetary imagers are out there pretty much every night, so when the seeing comes good, they get good data.

So it's also worth experimenting with your capture settings to see what eventually gets good results and what doesn't, so you can make the most of the seeing when it finally does come.

I'm not sure of the nuances of capturing in colour, but I reckon this AVI is a bit dark, so is more affected by noise than it would be if it was a bit brighter. Also, that would have made focusing more difficult. Maybe try knocking the frame rate down a bit, or reduce the f.l.? Undersampled data (i.e. data that has finer detail than the pixel scale) responds well to upscaling later.

In the end though, the seeing makes or breaks it. Still, all good stuff to try.

-Ivan
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  #20  
Old 06-04-2012, 03:28 AM
luigi
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Quote:
Originally Posted by lepton3 View Post
Hi Luigi,

I liked your first one better. Even though this does have more detail, the smoother appearance of the first one is nicer, I think.

Both very nice results. With that technique, now all you need is some special data!

-Ivan
TyVM Ivan! Your result is fantastic, It's fantastic what can be done with the same data set.
I'm on a random weather streak I'll try to do some images myself soon
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