Nebulosity has a software binning function that is identical in effect to the hardware binning that you have used for the RGB data. Just software bin everything (cal and NB) that is 1x1 to get it to 2x2 and you can then apply it directly to your binned RGB. Have done this and it works fine.
If you then wish to reclaim some of the resolution / scale lost in binning, try drizzle stacking.
Last edited by Shiraz; 30-11-2014 at 10:26 AM.
|