Updated the script in the first post with a new feature, ReNoise. It's range is from 0 (default, disabled), to 20. This feature allows you to add back some of the luma noise that was removed, which may sound counterintuitive. However, the noise has been temporally cleaned and also spatially modified, so it's not the same as when removed and should have better compressibility. An advantage of doing the modifications to the noise is that it changes only the noise, not also the underlying picture which would be the case if it were applied to the whole picture. There is an option from 0 (disabled), 1 to 10, which adds back 10-100 percent of the modified noise, and 11-20 adds an additional 10 to 100 percent. The modified noise is much weaker, so I thought it would be good to give the option to apply it more strongly
. A setting of 5 is probably a good starting point if you wish to use it.