New SHO, HSO, HOO normalisation tools

Bill Blanshan released a new version of his narrowband normalisation tools. These tools take a lot of guess-work out of the normalisation of narrowband images and give a good start for proper colour balance. Version 5 now includes a number of improvements, including support for an extra colour pallet, the HSO combination. Also there is much more control on any clipped areas and the tool now also supports the use of H-alpha as an extra luminance channel.

The tools are essentially PixelMath equations that can be downloaded for free from Bill’s Google Drive. He has also published a very detailed YouTube video where he explains how to best use the tools.