jLank

Here's my best effort! I too have never processed a narrowband image before and I'm still learning pixinsight. It continues to amaze me how powerful this software is. Coming from photoshop though I do miss a few features! I thought I'd do something interesting with the narrowband data to see if I could produce a unique colour of the target. I found the most interesting to be OSH because you have the blue nebulosity contrasted against the red glow from the star Navi. Wish I could've extracted more of the fainter data in the HA filter but I'm happy considering I'm still learning! Steps: Combine as OIII-SII-HA:R-G-B (pixelmath, no math operators, raw images used) Autocolour script to balance the available data with a black background Histogram Transformation - convert to non-linear data and align RGB channels Range select - white for deep space background Multiscale Liniar Transform noise reduction Masked stretch to bring out that nebulosity Curves transformation ACDNR - more noise reduction Local Histogram equalisation (a few runs at a minor strength) SCNR (green) - remove minor green cast over image and stars TGV Denoise (strength 2) - smooth out background noise that was creeping in Colour Saturation - Push the blues to balance with the red from the Navi EZ Star Reduction Local Histogram equalisation Final curves