Due to imaging under Bortle 8 light polluted skies and with clear nights during a new moon period quite rare , I use a niche process in Startools via its Compose Module to create visual spectrum synthetic LRGB image from my acquired SHO narrowband Data set.
Here’s my recent version of NGC 3324 Gabriela Mistral Nebula in VS Synthetic LRGB.
It’s not bonafide LRGB but at least it’s another option to use with Narrowband data to create something close to the visual spectrum.
Using the ST Compose Module …..,
I create a synthetic Luminance channel from the individual SHO data sets
Then create the Red channel from Ha + Sii ( luminance color set to Mono )
The Oiii data is used for the Green channel ( luminance color set to Mono )
The Oiii data is also used for the Blue channel ( luminance color set to Mono )
Once composited , luminance color set to L, RGB
It’s great having another useful option in your processing.
Astrobin link below for full resolution……,
https://www.astrobin.com/9oyaz9/
Attached native and crop versions in 200KB
Thanks for Looking
Comments welcome
Martin