Re: NEC PA271Q "Native" chromaticities
Re: NEC PA271Q "Native" chromaticities
- Subject: Re: NEC PA271Q "Native" chromaticities
- From: Andrew Rodney via colorsync-users <email@hidden>
- Date: Sun, 5 Jan 2020 09:33:20 -0700
I don't totally agree. Again, we can produce billions of numbers. Some are not
colors. Some differing numbers are the same colors:
R0/G255/B0 in ProPhoto RGB isn't a color. We can't see it. If you can't see it,
it's not a color. It's a set of numbers.
In sRGB, 1/255/240 and 2/255/240 are different triplets of numbers. They ARE
the same color as the dE between the two device values is 0.01:
http://digitaldog.net/files/ColorNumbersNotColors.jpg
<http://digitaldog.net/files/ColorNumbersNotColors.jpg>
16-bit color, the math allows us to define billion’s of color values, but that
doesn’t change the fact we still can’t see 16.7 million colors in the 24 bit
encoding of these pixels. As such, it’s best to talk about encoding having a
potential to define millions or billions of numbers, device values, that could
be associated to a color value thus color, if we could see them. But if we
can’t differentiae them visibly, it is silly to suggest they are indeed colors.
Don’t confuse a color number, a device value, for a color, a color you can see!
Andrew Rodney
http://www.digitaldog.net/ <http://www.digitaldog.net/>
> On Jan 4, 2020, at 11:06 PM, David Scharf <email@hidden> wrote:
>
> Well we can see 16.7 million or even 1 billion colors but we just can't
> differentiate them. 8-)
> David
> http://www.electronmicro.com <http://www.electronmicro.com/>
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