Godfrey:
That's a wonderfully formulated description. I wish I've seen it laid out
this clearly many years ago, instead of collecting bits and pieces
from various sources.
BTW, for the benefit of Mark and others interested in the question: here
is a nice illustration of various color gamuts in relation to the
CMYK gamut. It illustrates the "hierarchy" of the gamuts:
https://goo.gl/UJkgIr .
Roughly, one can assume that the maximum color gamut of a photo printer
does not exceed CMYK, but the particular paper (and ink-set) can make it
yet smaller.
Mark,
To clarify what I meant: When you calibrate a monitor, you create a
monitor profile and the OS uses it to set the monitor accordingly.
That assures that the color with a particular combination of parameters
is presented according to the accepted "standard".
At the same time, programs should use that profile to know how to
interpret the images they are working with for correct presentation on the
monitor. I.e., a program should know what should be the output colorspace
to peform the correct translation from whatever colorspace used to store
the image.
Some software does not consult the current profile, just assuming that the
monitor is using SRGB colorspace.
In that case, if you force the monitor itself (internally) to imitate
SRGB colorspace, then the image would look "close enough".
That'sin a way bringing the mountain to Muhammad. ;-)
At least, that's how it works on Windows (or my interpretation of it).
Cheers,
Igor
Mark C Thu, 28 Apr 2016 16:20:15 -0700 wrote:
From what I've been able to tell, monitors work within their native color
space, which may or may not correspond to sRGB or AdobeRGB or whatever. So
a monitor that is 78% of sRGB is just that - its native color space
coincides with 78% of the sRGB space. Some monitors can emulate certain
standard color spaces. I think this is what Igor was referring to when he
mentioned that some software assumes that the monitor is sRGB and can
produce off results when a wide gamut montior is actually used. But the
color space used by the monitor is not necessary a standard space, hence
the need to use the manufacture's profile, or calibrate with a
colorimeter.
Mark
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