[opendtv] Re: New Chips Improve Color TV Dramatically

I got lost...So which one of the two is a Hamster???
:-)

Manfredi, Albert E wrote:

>If I were a visitor from outer space, and a human told me
>that his birth date was 1 year different from that of the
>human standing next to him, this information would mean
>little to me, the alien.
>
>So I would probably ask what that meant.
>
>And the human would say something like, "The lifespan
>of a human is about 80 years or often more, so 1 year
>means we are roughly the same age."
>
>If, on the other hand, the object of age differences
>were two hamsters, my human host would explain that the
>difference of one year means a lot. Hamsters often live
>about 2 years.
>
>What Jeroen and Alan are saying is that the numbers in
>the table Jeroen posted, in any conceivable way they
>are used, show that the differences are perceptually
>insignificant.
>
>The numbers themselves don't say that, just as the
>relative age of two people or two hamsters doesn't by
>itself mean anything to someone who isn't familiar
>with the human or hamster lifecycles, but point is,
>both Jeroen and Alan are telling us that these numbers
>show insignificant differences.
>
>Bert
>
>
>Mark Schubin wrote:
>
>  
>
>>Sent: Tuesday, June 29, 2004 4:37 PM
>>To: opendtv@xxxxxxxxxxxxx
>>Subject: [opendtv] Re: New Chips Improve Color TV Dramatically
>>
>>I'm not sure there's much more value in pursuing this, but
>>I'll take one
>>final crack.  If, on a scale of tens of millions of years, I plot the
>>rise and demise of dinosaurs, that's pretty common.  If, on the same
>>scale, I plot the birth of every person on this list, they will all
>>occupy a point at essentially the same coordinate.  But we
>>were not all born at the same time.
>>
>>Similarly, the CIE x,y coordinates are useful for many
>>purposes but are
>>not ideal for identifying perceptually different color
>>primaries.  Once
>>again, I agree that the primaries being discussed ARE
>>perceptually very
>>close (I was involved in some of the standardization).  I
>>simply point
>>out that the x,y coordinates are not a way to prove that they
>>are close,
>>any more than a geological time scale is good for differentiating my
>>birth date from yours.
>>
>>TTFN,
>>Mark
>>
>>
>>Alan Roberts wrote:
>>
>>    
>>
>>>Sorry, Mark, but elementary colour science does just that,
>>>      
>>>
>>as I explained.
>>    
>>
>>>In any chromaticity space, those primaries are near
>>>      
>>>
>>identical sets. The
>>    
>>
>>>table of numbers is only that, a table of numbers, but they represent
>>>colours which when plotted in any sensible chromaticity
>>>      
>>>
>>diagram or colour
>>    
>>
>>>difference diagram, will show that they are darn near
>>>      
>>>
>>identical. Semantics
>>    
>>
>>>can't get you away from that obvious conclusion.
>>>
>>>----- Original Message -----
>>>From: "Mark Schubin" <tvmark@xxxxxxxxxxxxx>
>>>To: <opendtv@xxxxxxxxxxxxx>
>>>Sent: Tuesday, June 29, 2004 1:59 PM
>>>Subject: [opendtv] Re: New Chips Improve Color TV Dramatically
>>>
>>>      
>>>
>>>>1 - Granted, the primaries are perceptually similar, but
>>>>2 - You cannot prove that from your numbers.
>>>>
>>>>TTFN,
>>>>Mark
>>>>        
>>>>
> 
> 
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-- 

Regards,
Mark A. Aitken Director, Advanced Technology

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