This is an example of Video Artifact Premium denoisers and micro sharp. The original video is a 1920x1080 24p MTS file from hacked Panasonic GH2. This source has very visible color noise. A luminance noise is good, similar to a film grain. There is no other important issues. I used a stack of per-channel denoisers to get image clean. Also two sharp accurate filters added. No color correction is used, except a sharp with very large radius to get contrast. Image looks now more clean. After adding a small amount of film grain, the texture looks more accurate.
Footage by Space Ludwig
Music by Frédéric Chopin - Waltz in Am, B. 150 / Aya Higuchi