Go Back   IceInSpace > Images > Solar System
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rate Thread
  #1  
Old 03-07-2006, 07:51 PM
matt's Avatar
matt
6000 post club member

matt is offline
 
Join Date: Oct 2005
Location: Launceston, Australia
Posts: 6,570
Jupiter processes

Interested to get opinions. Here are two images of Jupiter featuring markedly different processing routines using the same avi.

Which one do you prefer?

Will reveal what processing took place later
Attached Thumbnails
Click for full-size image (jupsprocess1.jpg)
23.5 KB38 views
Click for full-size image (jupsprocess2.jpg)
19.6 KB44 views
Reply With Quote
  #2  
Old 03-07-2006, 09:31 PM
iceman's Avatar
iceman (Mike)
Sir Post a Lot!

iceman is offline
 
Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
I like the second one.
Reply With Quote
  #3  
Old 03-07-2006, 09:33 PM
hevelsky's Avatar
hevelsky
Registered User

hevelsky is offline
 
Join Date: Jun 2006
Location: France, Saint Laurent sur Sèvre
Posts: 131
Like Mike i prefer the second
Great Image
Reply With Quote
  #4  
Old 03-07-2006, 09:40 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,828
Gee, Matt, you've come a long way, despite the atrocious seeing reputation of Canberra. Those are big Jupiter's with good detail. The second one just looks more pleasing to the eye, especially when viewed side by side.

Cheers

Dennis
Reply With Quote
  #5  
Old 03-07-2006, 09:53 PM
Harpspitfire
Registered User

Harpspitfire is offline
 
Join Date: Jun 2006
Location: pittsburgh pa
Posts: 268
i wouldnt be able to say which is more color accurate- but the second definitely shows more detail and contrast- even though they are the same 'images'- the second process has a better 'focus' (for lack of better words)
Reply With Quote
  #6  
Old 04-07-2006, 06:30 AM
gbeal
Registered User

gbeal is offline
 
Join Date: Oct 2004
Location: New Zealand
Posts: 4,346
I'm with the above crowd, but both are good.
It would be better if they were open side by side.
Spill the beans, what's the scoop.
Reply With Quote
  #7  
Old 04-07-2006, 06:53 AM
matt's Avatar
matt
6000 post club member

matt is offline
 
Join Date: Oct 2005
Location: Launceston, Australia
Posts: 6,570
OK.

First of all, thanks for the replies. I agree. My preference is for the one on the right. Which is a bit of a surprise.

Here's the thing; the one on the right is a straight run through Registax with some very mild wavelets. That's all.

The one on the left was given the full treatment. virtualdubbed into BMPs... RGBSplit and ppmcentre (using the great new GUIs) ... each channel thru registax, stacked, mild wavelets... AstraImage ... LR decon, recombine ... in to photoshop.

The works!!!!!!!!!!! and yet ...

Go figure???

I'm not sure if it made any difference but I did perfrom the RGBSplit before the ppmcentre.

Perhaps this was a mistake, Mike????
Reply With Quote
  #8  
Old 04-07-2006, 06:58 AM
iceman's Avatar
iceman (Mike)
Sir Post a Lot!

iceman is offline
 
Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
I wouldn't call it a mistake - it's not the way I'd do it, but the result should not be any different in terms of the quality of frames.

Interesting results you have, and yes surprising. I just performed my routine on one of Adam's (hitchiker) runs from the LPI, and I'm waiting to see his original version again but i'm quite confident still that the processing routine I use will produce a better image most times.

In this case, it didn't.. it could be the seeing, it could be the settings used, the colour is slightly different - the first one is too yellow where as the second one has a nice dose of blue.

Interesting results for sure!
Reply With Quote
  #9  
Old 04-07-2006, 07:03 AM
matt's Avatar
matt
6000 post club member

matt is offline
 
Join Date: Oct 2005
Location: Launceston, Australia
Posts: 6,570
Yeah. The colour's the strange thing.

I didn't make any adjustments there at all. The yellow just seemed to happen all by itself as a result of the full-on processing routine.

Mike. What do you mean by "it could be the settings used"???

Cheers
Reply With Quote
  #10  
Old 04-07-2006, 07:13 AM
iceman's Avatar
iceman (Mike)
Sir Post a Lot!

iceman is offline
 
Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
What I mean is, the amount of LR deconvolution applied, amount of wavelets applied etc. Every image has to be treated on its merits and sometimes it needs more or less "treatment".

I hope you don't mind, I took your two images into AstraImage, side by side.

I performed almost exactly the same processing on them.

The top left is your original left image. The top right is your original top right image.
The images below are the same images after my processing.

- Split into RGB
- left image: LR 2 @ 1.1
- right image: LR 3 @ 1.1
- recombine
- gamma adjust 0.8
- take into photoshop
- curves adjust on centre of image
- slight/light unsharp mask
- colour balance blue channel +7 (got rid of the yellow hue).
- Save as web

That's it.

What do you think?
Attached Thumbnails
Click for full-size image (matt.jpg)
146.6 KB28 views
Reply With Quote
  #11  
Old 04-07-2006, 07:15 AM
iceman's Avatar
iceman (Mike)
Sir Post a Lot!

iceman is offline
 
Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
btw it's a very good image! Congrats, you must be pleased.

The image scale is large too - is that a resample or did you use a bigger barlow than normal?
Reply With Quote
  #12  
Old 04-07-2006, 07:26 AM
matt's Avatar
matt
6000 post club member

matt is offline
 
Join Date: Oct 2005
Location: Launceston, Australia
Posts: 6,570
Well .... I'll be jiggered!!!!

Mike, of course I don't mind. Well done, mate. I'm thrilled, and humbled at the same time

My idea was to just compare processes as far as detail and image quality is concerned.

Re: image scale. That was achieved in PS. Just kept resizing image by 5% increments. That way avoids artefacts.

Cheers
Reply With Quote
  #13  
Old 04-07-2006, 07:34 AM
matt's Avatar
matt
6000 post club member

matt is offline
 
Join Date: Oct 2005
Location: Launceston, Australia
Posts: 6,570
Interesting that the image on the right was able to take 3 (LR) iterations compared to the one on the left (2) - if I've got that right?

Would that not suggest the original image at right is slightly better???
Reply With Quote
  #14  
Old 04-07-2006, 07:44 AM
iceman's Avatar
iceman (Mike)
Sir Post a Lot!

iceman is offline
 
Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
It doesn't necessarily suggest the image on the right is slightly better, but I felt from looking at it, it could stand up to more sharpening (through deconvolution).

When I looked at them side by side, I feel the image on the left is actually a bit sharper (it's had more processing of it, already), but it lacked colour depth, contrast and was too yellow. Maybe that's why people (myself included) favoured the right one initially.

Because the left image had already had deconvolution applied to it, I went light on it so as not to oversharpen it and introduce any artifacts. It may have stood up to 3 iterations, but I didn't try it. I did 2, it looked good, so I stopped there Sometimes there's no method to my madness
Reply With Quote
  #15  
Old 04-07-2006, 07:57 AM
matt's Avatar
matt
6000 post club member

matt is offline
 
Join Date: Oct 2005
Location: Launceston, Australia
Posts: 6,570
Very nice work... and the feedback is much appreciated.
Reply With Quote
  #16  
Old 04-07-2006, 08:04 AM
Harpspitfire
Registered User

Harpspitfire is offline
 
Join Date: Jun 2006
Location: pittsburgh pa
Posts: 268
wow mike- you really brought that out- you just had the JPG i assume, can you just run the LR decon on a finished image like this?
Reply With Quote
  #17  
Old 04-07-2006, 08:06 AM
iceman's Avatar
iceman (Mike)
Sir Post a Lot!

iceman is offline
 
Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
Quote:
Originally Posted by matt
Very nice work... and the feedback is much appreciated
No probs, my pleasure!

I also think it would look even better at its original size.
Reply With Quote
  #18  
Old 04-07-2006, 08:08 AM
iceman's Avatar
iceman (Mike)
Sir Post a Lot!

iceman is offline
 
Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
Quote:
Originally Posted by Harpspitfire
wow mike- you really brought that out- you just had the JPG i assume, can you just run the LR decon on a finished image like this?
Yep, I just used the two jpeg's in the first post above. To run LR deconvolution on a finished image, you have to split it into the individual colour channels first. LR deconvolution (in Astraimage) only works on greyscale images.

Potentially the image would be even better if I had the original avi's to process (hint hint Matt)
Reply With Quote
  #19  
Old 04-07-2006, 08:31 AM
matt's Avatar
matt
6000 post club member

matt is offline
 
Join Date: Oct 2005
Location: Launceston, Australia
Posts: 6,570
Quote:
Originally Posted by iceman
Potentially the image would be even better if I had the original avi's to process (hint hint Matt)
I hear ya, Mike.

PM details where I can send the avi.

It's only a hand-picked 109 frames (VirtDub) so shouldn't have too much trouble getting that to you.
Reply With Quote
  #20  
Old 04-07-2006, 09:53 AM
davidpretorius's Avatar
davidpretorius
lots of eyes on you!

davidpretorius is offline
 
Join Date: Jun 2005
Location: Launceston Tasmania
Posts: 7,381
top work all, great data matt!
Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 11:31 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Advertisement
Astrophotography Prize
Advertisement
Bintel
Advertisement