Moth3r said:

I've just had a look at the script I used (here). Eedi2() caused artefacts in the Leia cell interrogation so I had to add in a special line to catch that. You will need to check carefully that there aren't any similar cases on Empire. Eedi2() has since been superseded by nnedi2(), so it might be worth updating the script to use the newer filter. You should also check that the colour saturation and hue tweaks and the Y-curve adjustment are appropriate.

Yeah I noticed that line of the script but didn't know that the filter plugin had been updated so thanks for answering my question. I liked your subtle approach to the grain better vs. g-force's script which is also great, I will try it out. Thanks.