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Originally Posted by strongmanmike
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Cheers Mike. No, I don't use the shadow/highlights tool in rich star fields. Masking out all the stars is near impossible in the scene like this. As mentioned in the original post, the use of wavelets ceased the need to mask and improved the contrast on the dust structure. One more fill-in to come once I get around to processing the data set. This week looks to be a good week for data collection too with a few clear nights predicted. Will see how far I can get with other projects. Thanks again!
Quote:
Originally Posted by Dennis
I am struggling to find some new words to express what I think and feel about this Jase, your latest image, without sounding repetitive. http://www.iceinspace.com.au/forum/....es/happy19.gif
The processing and detail is simply exquisite and the view quite breathtaking. Thanks for the rich explanations and annotated image – whilst these represent additional work to the already lengthy process, they add another dimension that further illuminates what is already a stunning piece of work. http://www.iceinspace.com.au/forum/....s/thumbsup.gif
Cheers
Dennis |
Thanks Dennis. Always appreciate your feedback. If the field of view warrants it, I enjoy producing an annotated version. I normally do this at the very start once I've initially stretched the data to see what's its capable of and determine what features I'd like to emphasise. So in many ways its a natural extension of the finished result. I like to study what I'm imaging as it provides me with more insight in keeping the processing real. Everyone has their motives. I'm pleased you enjoyed it.
Quote:
Originally Posted by leon
They just keep coming Jase, beautifully captured, crisp and clean, you would have to be happy with that one.
Leon
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Cheers Leon! Yes, I'm quite pleased with the way this one turned out. I've got two other renditions which didn't work for me. Thanks for checking it out!
Quote:
Originally Posted by CoolhandJo
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Pleased you liked it Paul. Thanks!
Quote:
Originally Posted by gregbradley
That's a beauty Jase. The widefield view really suits this object.
I agree with Peter, you got the background stars looking very nice which is the make or break with images of this object.
Another ripper. You're on a roll. Thanks for sharing your knowledge of PI - that's very helpful.
Greg.
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Thanks Greg. Agree, wide fields are the go here. A moderate focal length mosaic would be rather grand though with more resolution around the dusty features. Am still learning PI so far from proficient at it. In fact there are some things that down right mystify me. One in particular is when the output of certain routines flip the image. Weird. Also, probably a given, but I've found most wavelet style function work best on moderately stretched data, but not stretched to the end result as you need histogram flexibility to finish an image off. Anyway, thanks for the feedback.
Quote:
Originally Posted by multiweb
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Cheers Marc. I don't do anything particular to manage the blue channel. Understanding the RGB colour space helps. I don't use levels to set any initial white point. Always curves from the start. Depending on the data set, I'll use a very lightly DDP stretched image which assist in managing the stellar profiles, but its always finished of with curves. Everyone has their own method, providing it works for you - stick with it. Thanks again.
Quote:
Originally Posted by troypiggo
Gorgeous. You've been busy lately, loving it. As a novice, I wouldn't know what to look for, but after Peter's comment I re-looked at your image and see what he means. It does look very appealing.
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Thanks Troy. Yes, making the most of the clear nights. Its rare that I don't have data, the issue is more the time to process it. Not an easy area to work on. Pleased you liked it!
Quote:
Originally Posted by bokglob
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Cheers Darrell. Thanks for the kind words.
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Originally Posted by dugnsuz
Another beautiful 'quickie' jase.
Like PW said - star colours are very nice. Do they come straight out of the FSQ like that or do they need a fair bit of processing?
I love star fields like this, but my attempts fail to have that 'pop' due to lack of those jewel-like stars - any tips?
Cheers
Doug
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Thanks Doug! The FSQ delivers colours like any other well corrected APO. Regardless of the set up, they're not delivered like that 'out of the box'. There are a combination of items that help with star colours. Good focus, camera well depth versus exposure time, colour balance are a few, but for the most part they are influenced by processing. If you want to bring out the rich golden hues, adding red and green in the additive RGB colour space will do it but such an adjustment in curves must be very small and only to the highlights (top right of the curves line), so you'll need a few anchor points to not mess around with the mid tones or shadows. Its very easy to stuff up the colour balance if not careful so experiment until you get a feel for what is happening to the data. DDP is great for managing stellar profiles, thus maintaining colour. You can simulate the style of stretching DDP does in Photoshop using curves whereby the curve in the shadows (lower left of the curves line) is aggressive, then tappers to a straight line from mid tones through to highlights. Keep in mind this image is a straight RGB composite - no dealing with luminance colour shifts. Hope that provides some insight. Thanks again for positive feedback.
Quote:
Originally Posted by richardo
Hey Jase,
pretty amazing fov and detail obtained.... ah the lovely Q..
Great to see you back..
Missed your images and constructive expertise.
Didn't realise how much of an extent these little dark do dads go on for... like a galactic snakes and ladders.
The wide dynamic range would have been fun to process.
Looks very good.
Lovely golden stars and not over pushed so it looks like an indistinguishable soup.
I must revisit Pixinsight. Used it a bit years ago when it was first around.. I'm sure there's a heap more handy routines...
What filters are you using here Jase, Baader?
Great short snap !
All the best
Rich
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Cheers Rich. Good to hear from you again. Not an easy scene to do justice on, but it works. Much of the nebulae present appears to have been missed by Barnard. Goes to show how far amateur imaging has come. Re, the filters. Full set of Astrodon Series II, including 5nm Ha, 3nm OIII and SII. They balance extremely well with the 16803 chip. Thanks again.
Quote:
Originally Posted by Ross G
Amazing detail and colours Jase.
I love the wide FOV.
Thanks.
Ross.
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Thanks Ross. Pleased you enjoyed it.
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Thanks again all. I appreciate your support.
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