[opendtv] Re: Chroma Formats, P versus I, and Resolution Issues

  • From: Craig Birkmaier <craig@xxxxxxxxx>
  • To: opendtv@xxxxxxxxxxxxx
  • Date: Thu, 16 Dec 2004 10:14:24 -0500

At 2:24 PM -0800 12/15/04, Tom McMahon wrote:
>* After spending a few years looking at the highest possible quality 
>progressive D-Cinema imagery on the biggest screens with the
>best (2K black chip) projectors going thru both 4:2:0 and 4:4:4 
>codecs, I see no reason not to use 4:2:0 chroma format for
>compression (so long as the imagery is progressive).

I bow to Tom here, as he has had much more access than myself to 
recent demos. But I think he would agree, that extending the color 
gamut beyond the current Rec709 limits does make a noticeable 

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