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Thankyou Alex. Pix-insight has plenty of Noise reduction tools, and I've used them in the past with I feel, better success. Startools has an interesting (and unique?) approach to noise reduction.
Thanks Ryan, I also use noise reduction tools selectively. It definitely takes a while to tweak and get right.
Cheers Martin! From what I read a while back, basically every 4x number exposures = 0.5x noise. Pretty sure that was from "The Deep Sky Imaging Primer". Great book, by the way. Absolutely, they do well enough to get many people hooked on the hobby!
Thanks Ray, I sometimes apply NR to luminance only, in pixinsight.
Cheers Chris! I try not to over-do it
Thanks LostinSp_ce! I use inverted luminescence masks that have been stretched to better protect the galaxy/details and to increase NR strength on the background, and leaving only very light NR on the darkest dust lanes. Sometimes I blur the mask a little. Sometimes I just use a range mask.
I've applied NR to the Luminance layer as well as RGB layers but I haven't tried individual RGB channels. I'll definitely have a go at that.
I do use "SCNR" though, which applies only to the green channel as I find this to be the worst culprit for noise (at least to my eyes). I absolutely agree with you when it comes to having some background noise to keep it looking "natural". My personal goal is to just smooth it out a little so there is no obvious dots/pixels that stand out too much.
I've now down-sampled my image to original image scale at the end of my edit and this has also helped. I normally do this but I cropped a lot of my Stacked image out to include more subs so didn't feel the need to downsize originally
You guys have convinced me to definitely do a third edit, and cull the data down. I'll pick out my best exposures and maybe I'll even be able to tease out some more details.
Thanks guys for the thoughts!
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