What is the absolutely minimum amount of video noise reduction that Avisynth's TemporalSoften can apply?
I usually use Temporalsoften(2,3,3) but there was some banding on plain parts of the picture (e.g. blue sky, blank walls), so I'd like even less noise reduction - the bare minimum.
Would Temporalsoften(1,1,1) be the minimum? Or do some of those numbers need to be "2" in order for it to compare?