Re: YUV format

Ed Okerson wrote:
> On Fri, 27 Dec 2002, Holger Waechtler wrote:
> 
> 
>>>For the input mode of ppm files this is fine because you start out with
>>>the same size plane for Y, U and V (after conversion from RGB), but for
>>>YUV420 where the U and V planes are already 1/4 size, is it still
>>>appropriate to do this 6:1:1 reduction, or will that just reduce the color
>>>data even more than the YUV420 format already has?
>>
>>You can easily make this configurable in tarkin.c, near line 191. Until
>>now this was not necessairy...
> 
> 
> But am I correct in my thinking that it should be adjusted for YUV420
> input?

don't know, you'll have to run some experiments to find this out...

Holger

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