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Eric Coles' The Hubble Palette – Mapped Colors of Emission Nebula with Multi-Level Processing: my first attempt

Adobe Photoshop Processing Narrowband
Fine Art Astrophotography •5 replies•241 views
Glenn C Newell avatar
Glenn C Newell avatar
https://www.astrobin.com/cixtqv/

The technique adds a lot of color variation to your NB images (using Photoshop).

There is a video linked from that page you can watch to learn the technique.

This was my first (published) attempt and with super nice data from Chile. I'm less happy with data from home but I don't have strong "signal" in all three filters and I suspect that is a requirement. Learning, experimenting...

;)
Alex Woronow avatar
Alex Woronow avatar
I watched the video, and it seems the technique is a variation on CLAHE  (or, in PixInsight LHE). Functionally is it the same thing?
(BTW, really like your image!)
Well Written
Glenn C Newell avatar
Glenn C Newell avatar
Well without reading the paper I would say it’s local color balance, vs. local contrast enhancement.

I did use a local contrast enhancement photoshop action at one point, by that’s not what makes this image processing different from what I have done in the past.
Alex Woronow avatar
Alex Woronow avatar
Thanks, I suspect you're correct. I'll have to play with it a bit; looks promising.
Well Written Respectful
Andy 01 avatar
Andy 01 avatar
interesting technique - thanks for posting the video link!  8)
I had a play with it too - https://www.astrobin.com/full/ac8fpp/0/
cheers!
Andy 01 avatar
Andy 01 avatar
and here's another reprocess of a different image, I really like this new technique - https://www.astrobin.com/full/3fsrjr/0/  8)