Version A & B
HT to pre-align edges, channel combination (S, H, O)
remove magenta stars by invert SCNR(1) invert
SCNR (0.6), adjust colors using HT and CT
LRGB combination (Ha as L)
reduce star saturation by starmask, CT (-- sat)
Tuning the color by HT (align edges), SCNR(0.7), L mask, CT (+red)
noise reduction in version B (MLT, ACDNR)
Version C/D
Linear fit H,O to S, channel combination (S, H, O)
HT to align edges
remove magenta stars by invert SCNR(1) invert
MLT
color mask (yellow, 1, red, sat+ ; cyan, 1, blue, sat+)
Version W
No MLT for S master. Linear fit (S, O) to H, channel combination
HT to align edges
remove magenta stars by invert SCNR(1) invert
CT (hue), SCNR (0.5)
colormask (green, - green), (cyan, + blue), (yellow, + red)
ACDNR
LRBG combination (Ha), HT align edges, CT (- sat with inv L mask)
color masks (cyan, yellow) increase brightness, further tune colors
Version BD
No MLT for S master. Linear fit (S, O) to S, channel combination
HT to align edges
remove magenta stars by invert, SCNR(1), remove mask, invert
Lightroom to further tune colors Hue (-orange, -yellow, -green, +aqua, +blue), sat (+ yellow, green, aqua), lum (+yellow, green, aqua)
noise (50), color noise (30), and sharpness (30)
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