Some people don’t like the colour palette [Luminance = H alpha, Red=H alpha, Green= H alpha, Blue=OIII] and some people do. One can’t please everyone, but I will try. Here is the same data except using the colour palette [Luminance = H alpha, Red=H alpha, Green= (H alpha + OIII)/2, Blue=OIII]. Hopefully this is more pleasing to the “red is better” camp. I am agnostic.
https://www.flickr.com/photos/mlpark...posted-public/
I would still argue there is a strong case for allowing the H alpha data to dominate the luminance and colour channels to maximize the information content for many, but not all, nebula images. We need a mathematician with expertise in image processing to develop an algorithm estimating some measure of “information content” in an astronomical image. Perhaps this could be done using wavelets? Then we can prove or disprove my point.