[opendtv] Re: New Chips Improve Color TV Dramatically
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 29 Jun 2004 17:56:47 -0400
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
----------------------------------------------------------------------
You can UNSUBSCRIBE from the OpenDTV list in two ways:
- Using the UNSUBSCRIBE command in your user configuration settings at
FreeLists.org
- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word
unsubscribe in the subject line.
Other related posts:
