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 18:26:18 -0700
I'm talking both.
Color, is a perceptual property. So if you can't see it it's not a color. Color
is not a particular wavelength of light. It is a cognitive perception, the
excitation of photoreceptors followed by retinal processing and ending in the
our visual cortex, within our brains. Sounds like biology to me.... As such,
colors are defined based on perceptual experiments.
Fairchild's "Color Appearance Models". Page 1!
"Like beauty, color is in the eye of the beholder. For as long as human
scientific inquiry has been recorded, the nature of color perception has been a
topic of great interest. Despite tremendous evolution of technology,fundamental
issues of color perception remain unanswered. Many scientific attempts to
explain color rely purely on the physical nature of light and objects. However,
without the human observer, there is no color".
Further on the same page:
"It is common to say that certain wavelengths of light, or certain objects are
a give color. This is an attempt to relegate color to the purely physical
domain. It is more correct to state those stimuli are perceived to be a certain
color when viewed under specific conditions".
Page 1 paragraph 2 of Digital Color Management by Giorgianni and Madden:
"But color itself is a perception and perceptions only exist in the mind".
Page 11 of The GATF Practical guide to Color Management:
"Although extensive research has been conducted, we still not completely
understand what happens in the brain when we "see" color. The visual sensation
known as color occurs when light excites photoreceptors in the eye called cone
cells".
Page 75 of Understanding Color Management by Sharma:
"Color is an impression that we form in our brains".
> On Jan 5, 2020, at 5:57 PM, David Scharf <email@hidden> wrote:
>
> Hi Andrew,
>
> I think your talkin color science and engineering and I'm talkin biology.
> Inability to differentiate close colors does not mean their non-existence or
> imperceptibility. That's not silly, its actual!
>
> DAVID SCHARF
> http://www.electronmicro.com <http://www.electronmicro.com/>
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