Porting Shiandow's debanding filter

Hello,
Shiandow's debanding filter can give very nice results in videos:
github.com/zachsaw/MPDN_Extensions/tree/...RenderScripts/Deband

Could someone please port it to make it usable with ReShade in games?

That won't help. I needs HDR input to work (you can't dither/deband data which is already LDR), which games and thus ReShade usually do not provide. There are plans to force HDR output for games, but that's something for the future.