:D
in reality noise never truly clears, it only becomes acceptable or not noticeable per viewer anymore...
Lately am wondering on how would it be possible to emulate film grain using noise. ie: Having a setting for the amount & size of noise/grain as with film (ISO 100, 200, 400...). Would be possible? As such definitions and results are still much more predictable (at least for photographers) than a level abstractions.