Re: YUV format

Holger Waechtler <[email protected]> Fri, 27 Dec 2002 10:12:08 +0100
Newsgroups gmane.comp.multimedia.ogg.tarkin.devel
Message-ID <[email protected]>
Monty wrote:
> 
> 
> On Fri, Dec 27, 2002 at 02:13:43PM +0800, Dustin Stuart wrote:
> 
>>Instead of reducing the colour resolution, why not simply quantize the
>>colour information more heavily.
> 
> 
> Think about it.
> 
> For example, 16 bits -> 4 bits (4:1) reduces 65536 values to 16.
> that's 1/4000th the resolution, not 1/4.

They are not truncated/quantized in integer domain, the coefficient 
encoder just stops when the specified bit budget limit is reached. So 
you can define arbitrary levels of quantization.
(an advantage of embedded bitstreams - maybe the only one;)

Holger

--- >8 ----
List archives:  http://www.xiph.org/archives/
Ogg project homepage: http://www.xiph.org/ogg/
To unsubscribe from this list, send a message to '[email protected]'
containing only the word 'unsubscribe' in the body.  No subject is needed.
Unsubscribe messages sent to the list will be ignored/filtered.