Re: YUV format

Holger Waechtler wrote:
> Dustin Stuart wrote:
> 
>> YUV12 saves the chrominance planes at 1/4 the resolution of the luminance
>> plane right? because the eye is less sensitive to colour than shade.
>>
>> Instead of reducing the colour resolution, why not simply quantize the
>> colour information more heavily. This way the encoder could be more 
>> flexible
>> about how much colour information is kept (hopefully reducing blocky
>> artifacts in areas where the colour changes abruptly).
> 
> 
> This is done anyway. Right now the U and V component images get 1/8 and 
> the V component images gets 1/8 of the bit budget.
   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
sorry, this should read:

...the Y component image gets 6/8, the U and V component images get 1/8 
each...

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