Quote:
Originally Posted by monoxide
i'm still trying to wrap my head around a lot of the processing techniques, i just cant seem to get the results i'm after but the data i have isn't exactly fantastic to experiment with (short subs from an unmodded dslr with bad gradients)
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Nothing like a challenge TJ. I don't like dealing with gradients!
Quote:
Originally Posted by seeker372011
jase
I sort of followed what you did till you got to the SCM bit...
huh?could you please explain as an (in)famous politician once said
oh and big to differ about northern hemisphere having the best galaxies, we got the Magellanic Clouds they dont  |
SCM...Selective Contrast Masking
When you're close to the end of your image processing routine and have flatten all layers, do the following.
- Create a new layer by dragging background layer to new layer icon in the layers pane (duplicate it in other words).
- Optionally, name the new layer. I typically call it SCM
- With the new layer highlighted, go to Filter > Other > Hipass (~6 pixels) - experiment here. 5 or 6 does it for me.
- Switch layer mode from normal to overlay
- Now create a layer mask for the SCM layer - This is very important. You might think the overlayed SCM looks pretty good at this point as its done some tricky "stuff" to the image, but watch what it does to your stars and noise etc. Not nice. Hence you need to create a mask to selectively highlight regions/details.
- Layer > Add layer mask > hide all
- select brush tool B
- use brush (white) to selectively unhide areas in the mask
- use brush (black) to revert to hidden if needed
- Once satisfied – Layer Flatten Layers and save
- Enjoy!
You can obviously alter the opacity of the SCM so your images don't look too "plastic". Be careful you don't over do it.
The above was taken from a previous post of mine. Search is a wonderful thing.
Hmmm. Not sure re galaxies. LMC and SMC are irregular in shape and don't show much structure compared to M31 and others. Hmmm tough call.
Quote:
Originally Posted by EzyStyles
fantastic shot as always jase. colours are nicely done. When did you capture the data? hasn't it been pouring rain from your neck of the woods? your not that far away from me and its been cloudy for the past 4 weeks!.
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Thanks Eric. The joys of remote imaging. It can be hailing where you are, but its bound to be clear somewhere in the world.
http://www.global-rent-a-scope.com. Don't think my South Gippsland dark sky observatory would be able to image targets in Ursa Major anyway.
