I think Moth3r is right--the relative level of detail and the colour balance is strongly reminding me of the GOUT, albeit tweaked a bit. Every laserdisc capture I've ever seen (except for possibly the blackmagic'd X0) has looked substantially softer than the GOUT, and that this should be so much closer is indicative of its true origin. And Darth Editous raises a good point that rendering this out frame by frame in Photoshop would be an insanely roundabout way of going about the image processing.

The picture quality achieved here, however it was really accomplished and by whom, is clearly rather good, but let's not make it out to be more than it is. I think similar results could be achieved through further AviSynth scripting, and with the addition of anti-aliasing it could potentially be superior still.