Gradient banding in video output

[tom95521]

While playing with custom transitions I have noticed banding of background on video output. Apparently due to limited 8 bit video (256 shades) and mp4 compression. I tried adding 10% gaussian noise to gradient rectangle (screen capture of rectangle) and it seems to help.

Maybe it would be a good idea to include option to add gaussian noise to gradients during 8 bit video publishing.

Davinci Resolve Studio and ffmpeg have a deband filter but apparently not x264.

Update: Potplayer has a deband filter, temporal noise filter, and many other features (screen saver, recorder, ...). You can also open URLs with PotPlayer so the deband filter works on YouTube and other videos. I have been using Potplayer instead of MPC-HC on my Windows PC. I have not found a deband filter option in Nvidia Control Panel.

Thanks,
Tom

Download original or watch on YouTube that may have been re-encoded.

Fade from black to gradient produces temporal noise that is related to banding. Maybe possible to reduce with gaussian noise gradient or x264 denoise option.

Download original video or watch on YouTube.that may have been re-encoded.