Quote:
Originally Posted by Placidus
No idea how PixInsight does it
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There are many ways to skin a cat with the PI swiss army knife, Mike
A typical workflow for PI would be a RGB Combine, DBE gradient removal (if needed), background neutralization using a preview, color calibration with a white reference (the stars in the image, a galaxy, the whole image, etc.)
Sometimes a linear fit of the R, G and B produces a nice result or an unlinked Histogram stretch.
I used to set my R, G and B values using eXcalibrator but it didn't really do any better than the conventional colour calibration options, IMO.
Like you, I do a heavy noise reduction on the RGB before combining with the luminance.
Cheers,
Rick.