Re: Humans (and cameras and scanners) do not have a color gamut (?)
Re: Humans (and cameras and scanners) do not have a color gamut (?)
- Subject: Re: Humans (and cameras and scanners) do not have a color gamut (?)
- From: Wire ~ via colorsync-users <email@hidden>
- Date: Thu, 9 Jan 2020 11:03:51 -0800
Greame's explanation gets to the heart of the matter: visual transducer.
Consider a non-technical English definition for gamut as "a complete extent
or range"
What a camera does is not visual until the image is developed. Once it is,
it manifests as a color experience that can be compared. Then you can
ascertain completeness.
It's not that a camera has no gamut, it's more that it's sort of
meaningless. Until the camera transduces the scene into an image, you've
just got spurious physics.
Once it spits out a JPEG, you've got a gamut.
We can all see that it really matters how you organize the abstractions in
order to make sense of the system. And as there are specific nuanced
vernaculars with formal justifications, there are more common ordinary
colloquial vernaculars that are as useful.
All of the specific terms we are using work as both!
No tyranny of thought is required, including a tyranny of correctness. Let
truth be understood in relation to the principles and provisions of the
matter at hand, and remain open to what seems to violate it, as this is yet
another form of truth.
IOW, following Occam's Razor, don't let your explanation get any more
general than needed for your purposes.
If you are calling out camera gamut as a suspect concept, it's not because
an sRGB JPEG is an invalid way of considering a camera's limits, but to
examine the presuppositions of the images formation.
This matters in surprising ways. If you think you are a professional
photographer, you could consider that photojournalism is the most serious
and important line of photographic endeavor. Truth is critical! In that
profession, the camera is considered such an instrument of visual fidelity
that raw processing is not permitted by press organizations because it's
too editorial. It's in camera JPEG only. So does the camera have a gamut?
WRT tree falling and reality, there's just no way to prove the sound apart
from the hearer. The principles by which the world is organized are a near
total mystery, and may forever remain so. But we can study ourselves and
gain an understanding of our nature and limits. And maybe conclude that
it's as important to be good as true.
And beauty doesn't hurt!
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