[Tig] dual link on NVIDIA SDI card

Rob Lingelbach rob at colorist.org
Tue May 18 19:22:36 BST 2010

On May 18, 2010, at 11:18 AM, Jean-Francois Panisset wrote:

> "fill/key" terminology comes from live keying applications, where the
> picture comes out of the A link (4:2:2) and the B link is used for a
> matte.

Thanks JF,  and Lucas.

For a moment I had confused myself by thinking of Y-Cb-Cr and 0:2:2  
(putative B link) as being chrominance information, so that wouldn't  
be "key."

Rob Lingelbach
rob at colorist.org

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