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: Iliah Borg via colorsync-users <email@hidden>
- Date: Fri, 10 Jan 2020 21:34:02 -0500
> color-gamut
> The limits of the array of colours that can be captured by an image-capturing
> device, represented by a color-encoding data metric, or physically realized
> by an output device or medium.
Compare to:
"Color Gamut: a range of colors achievable on a given color reproduction medium
(or present in an image on that medium) under a given set of viewing
conditions— it is a volume in color space"
"the range of color appearances (i.e., color gamuts)"
Both are quotes from Ján Morovič, the chairman of the CIE Technical Committee
8-03 on Gamut Mapping.
I'm afraid that before trying to bend the definition of colour gamut one needs
to understand what is it that a sensor captures, and what is its output, that
is some physics (and in a way, electronics) of the process; and once he
understands, he may not want to re-define colour gamut.
But if he wants, he needs to provide a useful definition, and unless such
definition is presented there is no subject to discuss.
"The limits of the array of colours that can be captured by an image-capturing
device" is a rather odd entry, since generally capture devices have an output
for any stimulus.
The moment we starts to speak of colour gamut of a capture device we in fact
speak of a transform from non-colorimetric device space to a colorimetric
space, defining the gamut of the said transform.
Instead of "can be captured" try maybe "can be distinguished".
--
Best regards,
Iliah Borg
LibRaw, LLC
www.libraw.org
www.rawdigger.com
www.fastrawviewer.com
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