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  #21  
Old 04-07-2006, 02:23 PM
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asimov (John)
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Good capture Matt, & nice reprocess Mike!

I had a crack at it too, hope you don't mind. I only worked with the one on the right.

Purely in the name of experimentation I wanted to see the effects of different methods in Astraimage. Heres one without deconvolution ;

I saved Matts image as a bmp & did the RGB split in Astraimage, unsharp mask 2.0 was applied on all 3, recombined. Unsharp mask of 2.5 was applied. A gamma reduction of 0.8 was applied. Screen shot it & taken into my editor (Picture Publisher) saved as a jpg, reduced in size. Thats it.

I found it interesting that it got rid of the blue hue just by doing that without deconvolution!
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  #22  
Old 04-07-2006, 02:59 PM
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Nice work John.

Don't mind you having a go at all. The more the merrier.

This colour situation is very weird.

Love the avatar, by the way
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  #23  
Old 04-07-2006, 03:12 PM
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OK

For those who want to download the full 109 frame avi from which these images have been produced, here's the link:

http://www.artwarehouse.com.au/Docs/dubdub.zip

Sorry for folks on dial-up (like me). It is what it is
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  #24  
Old 04-07-2006, 03:19 PM
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6.59 megs...That must have taken yonks to upload on dialup!

Dialup here too. I may do it tonight as I'm going to bed
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  #25  
Old 04-07-2006, 03:23 PM
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Luckily, John, I have very understanding and helpful girlfiend (member name raezee) who has broadband and uploaded it to her website
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  #26  
Old 04-07-2006, 03:28 PM
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astra image will darken some images with deconvolution. I do not worry as a auto colour in photoshop corrects it straight away.

You notice generally a brightening as the histostretch takes place when you split or convert to greyscale, and then darkening with some deconvolutions

As I am going through 30+ avis over the last two months, to reprocess with the new ppmcentre and split batch programs, this one cropped up.
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  #27  
Old 04-07-2006, 03:31 PM
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Quote:
Originally Posted by matt
Luckily, John, I have very understanding and helpful girlfiend (member name raezee) who has broadband and uploaded it to her website
easily fixed, marry her and words like "understanding" and "helpful" words are quickly dropped from your vocabulary!!!!
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  #28  
Old 04-07-2006, 03:37 PM
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But back to your prior post Davo

That's amazing how your top left image (combine) has the same overall blue colouration.

Even your avatar has a blue tinge.

Any idea why?
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  #29  
Old 04-07-2006, 03:38 PM
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Quote:
Originally Posted by davidpretorius
easily fixed, marry her and words like "understanding" and "helpful" words are quickly dropped from your vocabulary!!!!
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  #30  
Old 04-07-2006, 03:40 PM
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working with the split r,g,b and processing them all differently ie differenet wavelets and deconvolution will darken / brighten each channel. upon recombining, the colour will be off. The auto colour will fix it though in PS
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  #31  
Old 04-07-2006, 03:48 PM
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Cheers

I've never used auto colour in PS

Will check it out
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  #32  
Old 04-07-2006, 03:51 PM
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no worries mate!!!
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  #33  
Old 05-07-2006, 11:06 AM
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OK here's my process of your avi, Matt.

Great data. Just needs more image scale!
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  #34  
Old 05-07-2006, 12:41 PM
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Wow

That's really something, Mike. Thanks so much for going to the trouble of downloading and processing.

I'm really encouraged. Must have been one of those rare nights in Canberra when the seeing climbed above 3/10

Must get this scope out of Canberra sometime and along to a star party and do some imaging alongside you ... and other IIS-ers. See what she can really do

I guess you followed your usual processing path: VD split into BMPs, ppmcentre.and.. RGBSplit (with new software)... run each channel thru regi, stack and mild wavelets, AI (LR decon) and AI recombine back, and then a little work in PS?????

Cool stuff. Again, many thanks
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  #35  
Old 05-07-2006, 01:39 PM
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That's exactly what I did Matt. Glad you like it, it was nice data to work with.

In AI, I did 5 iterations @ 1.15.

And I did use the new PCFE and RGBSplit front-ends.
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  #36  
Old 05-07-2006, 04:29 PM
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Truly a great job reprocessing Mike! Well done!
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  #37  
Old 09-07-2006, 02:29 PM
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Quote:
Originally Posted by iceman
- curves adjust on centre of image
Mike

Been meaning to ask for days.

In your earlier post in this thread you refer to the above in PS

How is this done? How do you work curves on the centre of the image?

Cheers
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  #38  
Old 09-07-2006, 05:32 PM
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Hi Matt
It's explained in the tutorial, under the Photoshop section. Let me know if you have any q's about it.
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