[MEncoder-users] Filter large dots

[Marco]

Is there a way to filter large dots quickly appearing and disappearing?

I'm talking about large (more than 3px) dots with irregular shape.
Sometimes they have the shape of a single hair.

They are usually present in just a single frame. This kind of noise is
very common with old tapes remastered in dvd format.

I tried hqdn3d, but I think that it should be used for different noises.

Thanks,
Marco