PixInsight script that allows you to extract the Sulfur II, Hydrogen Alpha, and Oxygen III signal from the bayer matrix in OSC (usually RGGB) and dual band filters.  The quantum efficiency (QE) of the camera sensor will influence the calculation of contributions to each channel. The result will be independent SHO channels with the option to compose a SHO or H*O or S*O (synthetic green image palette. Developed by Raúl Hussein Inspired by videos of Dark Sky Geek YouTube channel