SilverWook said:

AntcuFaalb said:

SilverWook said:

I wonder if the sort of color video voodoo the Dr. Who restoration team has done with episodes that exist as black and white prints could be possible with this?

Unfortunately, no. IIRC, the BBC team relied heavily on the fact that the video was transferred via a composite medium by using information gleaned from the dot crawl to figure out which color caused the interference in the luma (B&W) channel in the first place.

Actually, I was thinking of how they took the color signal from a fan's Betamax recordings and combined it with the monochrome 16mm.

And in recent years, they actually used the technique AntcuFaalb was thinking of (chroma dot restoration), even when they did use the betamax chroma. The chroma dot color wasn't kept in the final DVD video in those cases, but it gave them a reference to de-warp the 16mm and align to the video color. :) Other releases were indeed restored only from chroma dots found on the black and white 16mm.

details: http://www.purpleville.pwp.blueyonder.co.uk/rtwebsite/TheClawsOfAxosRedux.htm