Simulate demosaicing artifacts of a Bayer CFA
Demosaic
Updated: 18 May 2018
Author: nuki
Compatible Nuke versions: 8.0 or later
Compatibility: Linux, Mac, Windows
This is a BlinkScript version of a weighted Median method for Bayer demosaicing. It supports different CFA arrangements and also handles alpha channels by reconstructing them from green. For proper color fringes I would advise you to run this filter on the final comp though, as in reality the Sensor artifacts would be among the last imperfections to happen before storage/compression. (Images at 200% to better show the artifacts)
I found this filter quite handy to match CGI with plates and if you add a random offset per-pixel (+/-) before applying it you can get some nice digital noise patterns for free:
