(click on image formfull size 6.47MB)
PixInsight rejection algorithm artifacts with advanced sigma clipping. (Ok with Winsor rejection)
Initial version: NGC6820 One shot color
Processed : Gradient, color calib., BlurXT, separate star / nebulosity stretch, NoiseXT, combine with luminance stars, final adjust.
(click on image for full size 6.6MB)
Visualizing the effect of combining stars from luminance exposures for more natural star color.
Experimental RGB re-balancing
Linear fit G and B to R channel and recombine
(click on image for full size 7.4MB)
R,G, B chennels split (same stretch)
Combination and comparison with original balance (starless and star images)
