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RE: The color red - Microsoft - and some comments, Peace!



Kevin,

	Yeah, 4:1:1 is very problematic for synthetic content.

	My general recommendation for folks sourcing in DV but
delivering to DVD or other 4:2:0 codecs is to render using 4:2:2 in
their NLE, to a 4:2:2 codec.  The various 4:2:2 uncompressed codecs are
fine, as are Motion JPEG or DV50.  But 4:2:2 is a superset of 4:2:0 and
4:1:1, so using it makes sure rendered elements get as much chroma
detail as possible.

	Thank goodness we've left behind the YUV-9 codecs (basically
4:1:0:0) - Sorenson Video 1&2 and the various Indeo codecs had hideous
chroma blocking.

-Ben Waggoner

-----Original Message-----
From: Kevin Marks [mailto:email@hidden] 
Sent: Tuesday, January 24, 2006 6:14 PM
To: Ben Waggoner
Cc: Pat Carullo; Wayne Levin; email@hidden
Subject: Re: The color red - Microsoft - and some comments, Peace!


On Jan 24, 2006, at 5:00 PM, Ben Waggoner wrote:

> 	Everything I said was specific to 4:2:0 subsampled codecs.  So
> H.264, MPEG-1, MPEG-2, VC-1 and WMV9.  All 4:2:0 codecs have issues 
> with
> sharp edges of highly saturated colors, including ones from Microsoft.

and indeed 4:1:1 like DV:

http://www.adamwilt.com/pix-sampling.html

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 >Re: The color red - Microsoft - and some comments, Peace! (From: Kevin Marks <email@hidden>)



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