Hi all, my first post here so be gentle!
My Oiii filter generates pronounced halos around the brightest stars and I'd like to be able to correct these through processing. I've seen a few approaches described but I can't seem to be able to apply them effectively, and I resorted to Google to see what other approaches there may be.
I chanced upon a description of what may be a novel approach (in Pixinsight as it happens) and I'd like to see whether we can achieve a similar process in StarTools. The full details can be found at http://astrodoc.ca/wp-content/uploads/2017/01/REMOVING-HALOES-FROM-BRIGHT-STARS.pdf but in summary it involves subduing the halos by by blending the Oiii data with halo-free data from another filter. I assume this would involve use of the Layer function. Apologies if this is already a known technique - if so, please can someone point me to a description of the process.
I can provide sample stacked Oiii and Ha images if anyone can spare a few minutes to give this a go.