ICEINSPACE
Moon Phase
CURRENT MOON
Waning Gibbous 77%
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06-10-2019, 10:53 AM
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Lee "Wormsy" Borsboom
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Join Date: Jul 2013
Location: Kilcoy, QLD
Posts: 2,058
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Quote:
Originally Posted by strongmanmike
Knew it ...decon, wavelets now AI huh?....hmmm?..I'm getting too old for all this, I'm still locked in the unsharpmasked era ...artificial vs natural...
Where will it all end?
Great job Lee, luv yer work
Mike
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haha, I for one welcome our new AI overlords. Can't stand unsharp mask.
I've redone this now with less sharpening artefacts, less noise reduction and a slight colour tweak.
Quote:
Originally Posted by cometcatcher
Holy smoke! Makes all mine look underexposed.
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Cheers Kevin; more is always better when it comes to data. You could always add some more to your previous-season's work!
Quote:
Originally Posted by graham.hobart
that is one amazing trio!! lovely and smooth, really beautiful.
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Thanks Graham :-)
Quote:
Originally Posted by Peter Ward
Bortle 3? Really? Want to swap for a 6 ?
Like your work Lee.
Really fine star profiles, plus the colour is excellent.
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haha, yeah, I have decent skies here. Unfortunately, as of Tuesday next week it's going to take me about 2hrs to get to work, so it comes at a significant time cost.
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06-10-2019, 01:48 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,177
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Quote:
Originally Posted by codemonkey
haha, I for one welcome our new AI overlords. Can't stand unsharp mask.
I've redone this now with less sharpening artefacts, less noise reduction and a slight colour tweak.
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Bravo ...NOW it is essentially perfect ...I may seem picky at times but I know what'm talk'n'bout girlfriend
Beautiful shot!
Unsharpmask Mike
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07-10-2019, 08:59 PM
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Registered User
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Join Date: Feb 2006
Location: Sydney
Posts: 17,904
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Late to the party here.
Love the extremely detailed inner areas of the galaxies.Wow, that is really sharp, I like it.
Greg.
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09-10-2019, 08:08 PM
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Don't have a cow, Man!
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Join Date: Apr 2013
Location: Adelaide, South Australia
Posts: 1,097
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Gees, I wish my filler images looked like that!
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11-10-2019, 08:47 PM
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Lee "Wormsy" Borsboom
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Join Date: Jul 2013
Location: Kilcoy, QLD
Posts: 2,058
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Quote:
Originally Posted by strongmanmike
Bravo ...NOW it is essentially perfect ...I may seem picky at times but I know what'm talk'n'bout girlfriend
Beautiful shot!
Unsharpmask Mike
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lol thanks Mike, you were right as usual. I've since reprocessed it again, this time doing a bit of noise reduction and skipping the AI sharpening. It's a bit softer, but not much and overall I think it's an improvement.
Quote:
Originally Posted by gregbradley
Late to the party here.
Love the extremely detailed inner areas of the galaxies.Wow, that is really sharp, I like it.
Greg.
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Thanks very much, Greg :-)
Quote:
Originally Posted by Bart
Gees, I wish my filler images looked like that!
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Thanks Bart, glad you like it :-)
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12-10-2019, 01:12 PM
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Billions and Billions ...
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Join Date: Mar 2007
Location: Quialigo, NSW
Posts: 3,142
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Very nice work Lee! Great colour and crisp detail in the galaxies.
The only thing that bothers me a little bit is the stars look a bit soft compared with the crisp detail in the galaxies. Perhaps that's a personal taste thing? In any case, well done!!
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12-10-2019, 02:33 PM
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Lee "Wormsy" Borsboom
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Join Date: Jul 2013
Location: Kilcoy, QLD
Posts: 2,058
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Quote:
Originally Posted by marc4darkskies
Very nice work Lee! Great colour and crisp detail in the galaxies.
The only thing that bothers me a little bit is the stars look a bit soft compared with the crisp detail in the galaxies. Perhaps that's a personal taste thing? In any case, well done!!
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Thanks Marc, that's good feedback. That was a combination of doing zero deconvolution on the stars and using ArcsinhStretch. Typically when I use deconvolution it messes the stars up a bit, so this time I masked them out entirely.
I've now done some careful deconvolution on the stars which has tightened them up a little bit without introducing any artefacts. They still look soft, but that's how I want them... they are a bit tighter now though. I also sharpened up NGC 7582 a little bit more.
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12-10-2019, 03:16 PM
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Billions and Billions ...
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Join Date: Mar 2007
Location: Quialigo, NSW
Posts: 3,142
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Quote:
Originally Posted by codemonkey
Thanks Marc, that's good feedback. That was a combination of doing zero deconvolution on the stars and using ArcsinhStretch. Typically when I use deconvolution it messes the stars up a bit, so this time I masked them out entirely.
I've now done some careful deconvolution on the stars which has tightened them up a little bit without introducing any artefacts. They still look soft, but that's how I want them... they are a bit tighter now though. I also sharpened up NGC 7582 a little bit more.
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Yes! That's a nice improvement Lee - the differential is not so noticeable. Excellent image!
My humble advice to anyone is don't be afraid of decon ... decon is your friend! The art, of course, is knowing when to stop before the artefacts creep in. Just ignore those pesky unsharp masking decon deniers out there (No Mike, I didn't think about you once when I typed that! )
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12-10-2019, 03:38 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,177
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Quote:
Originally Posted by marc4darkskies
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Ha ha, I was joking about the unsharpmaskaphile thing Just for the record... I do use USM but also decon semi-regularly too While the decon in Astroart works ok with detail within galaxies and the like, I have never mastered its use successfully on stars however, the unsharpmask in Astroart works well for stars and ok for the detail....so I use both in varying amounts, depending on the seeing and the object
Mike
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12-10-2019, 04:29 PM
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Billions and Billions ...
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Join Date: Mar 2007
Location: Quialigo, NSW
Posts: 3,142
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Quote:
Originally Posted by strongmanmike
.. I do use USM but also decon semi-regularly too While the decon in Astroart works ok with detail within galaxies and the like, I have never mastered its use successfully on stars however, the unsharpmask in Astroart works well for stars and ok for the detail....so I use both in varying amounts, depending on the seeing and the object
Mike
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Yeah, different tools. Never looked at Astroart. I always do decon in CCDStack when stacking and building masters - mainly to reduce / normalise star sizes. It does a good job but you have to be careful. I also use various contrast enhancing & "tightening-up" techniques in Photoshop where I can mask and blend to taste.
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13-10-2019, 10:30 AM
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Lee "Wormsy" Borsboom
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Join Date: Jul 2013
Location: Kilcoy, QLD
Posts: 2,058
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Quote:
Originally Posted by marc4darkskies
Yes! That's a nice improvement Lee - the differential is not so noticeable. Excellent image!
My humble advice to anyone is don't be afraid of decon ... decon is your friend! The art, of course, is knowing when to stop before the artefacts creep in. Just ignore those pesky unsharp masking decon deniers out there (No Mike, I didn't think about you once when I typed that! )
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Thanks Marc :-) Yeah I usually overdo decon if anything and I don't like what it does with the brighter stars that have clipped centers (which I always have some of)... it turns them into donuts. To avoid that, this time I built a contour mask for the stars and applied that while doing decon, which tightened the stars up without making donuts. I'll definitely be doing that in future.
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23-10-2019, 08:12 AM
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ze frogginator
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Join Date: Oct 2007
Location: Sydney
Posts: 22,062
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23-10-2019, 08:57 AM
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Unregistered User
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Join Date: Mar 2017
Posts: 754
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Wow! That's pure eye candy!
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23-10-2019, 07:27 PM
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Lee "Wormsy" Borsboom
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Join Date: Jul 2013
Location: Kilcoy, QLD
Posts: 2,058
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Thanks very much Marc and LostInSp_ce, glad you like it
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24-10-2019, 01:56 PM
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Registered User
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Join Date: Nov 2005
Location: Cairns
Posts: 1,087
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Beautiful image Lee!
I really love it!
Cheers,
Tim
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25-10-2019, 12:42 AM
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Registered User
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Join Date: May 2006
Location: Glanmire, NSW
Posts: 2,190
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Lovely image Lee and a good discussion on processing techniques. I tend to be old school and err on the side of less sharpening. Congrats on the nice work on this one.
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26-10-2019, 09:45 PM
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Lee "Wormsy" Borsboom
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Join Date: Jul 2013
Location: Kilcoy, QLD
Posts: 2,058
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Thanks Tim and Rodney! :-)
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