Thread: Antennae
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Old 21-05-2016, 02:01 PM
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codemonkey (Lee)
Lee "Wormsy" Borsboom

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Join Date: Jul 2013
Location: Kilcoy, QLD
Posts: 2,058
Quote:
Originally Posted by Atmos View Post
That is really nice Lee
Question though, there are a lot of grey stars, is that due to not having the colour depth (RGB data) or something else?
Cheers mate! There's a couple of things at play there.

#1 I used a mask to push the vibrance/saturation on the galaxy and did this much more heavily on the galaxy than I did on the stars/background.

#2 The RGB data isn't nice... the star shapes between red and blue in particular are very different. For some reason, even with good guiding I've found now that I seem to get very high eccentricity when binning 2x2 and I think that, combined with less than great seeing/tracking on this, it screwed up my stars. I had a lot of magenta stars, and to combat this I took the lazy way out: whilst protecting the galaxy with a mask, I simply desaturated magenta.

Quote:
Originally Posted by Slawomir View Post
I really like the new revision Lee. A definite improvement over the previous versions - colours are much nicer than Version A and stretching histogram further (on top of a few other Jedi mind tricks in PI) resulted in a beautiful photograph.
Thanks Suavi :-) I overdid noise reduction in the second version, and in the first I did none. This one I think I got a good balance there and it enabled me to push the data a bit more to bring out the tidal tails a bit more.
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