Moth3r said:

The colours, and the level of detail (is there some sharpening going on along with the upscale?) you've managed to dig out of the murky GOUT video are really impressive.

It's a shame that there still residual DVNR smearing and aliasing that you can't do anything about. Please do share your script when you're done, because I'd be interested in testing it out on a capture of the PAL laserdisc.

To demonstrate how nice these colours are, I've added downscaled screenshots (1-3 only) to my comparison page here: http://moth3r.heliohost.org/dvd-screens.htm

There is sharpening (via MSharpen), but it's subtle.

Mostly, however, I find it's You_Too's colors that really bring out the "hidden" details.