Use LimitedSharpenFaster before or after downscaling?

[orion44]

When backing up a DVD and downscaling the resolution, should I apply LimitedSharpenFaster before or after downscaling?

Same question for denoising.

[Selur]

You probably get more of an effect if you sharpen after the downscaling, otherwise depending on the downscaler you might lose anything LSF did.
https://github.com/Asd-g/AviSynth-DPID might be worth a look when downscaling, with DPID using LSF before the resizing might also work fine.

[pandy]

If i perform sharpening then it is always performed before downscaling. Denoising - depends on type of noise and tools but usually also before downscaling.

[orion44]

Thanks, guys.

Does anyone remember what were the most popular denoising filters that were used with LSF back in the 2000s?

[killerteengohan]

Thanks, guys.

Does anyone remember what were the most popular denoising filters that were used with LSF back in the 2000s?

Deen used to be used quite a bit back then. It's pretty strong though at default parameters.

deen("c3d",0,3,9)

Those parameters will make it much less destructive, but it's still a fairly strong one.