[argyllcms] Re: Question about viewgam

  • From: Hermann-Josef Röser <posts@xxxxxxxxxxxxxxxxxxxxxxxxx>
  • To: <argyllcms@xxxxxxxxxxxxx>
  • Date: Thu, 25 Feb 2021 15:02:18 +0100

Hello Yves,

the problem seems to be semantics or definition in the sense that (according
to Wikipedia) a gamut is the range of colours a monitor or a printer can
represent.

Still I hope it is viable to say that the projection of the full RGB-cube
using the scanner's ICC-profile will define the volume in Lab-space, the
scanner can measure ( for the given setup, for which the ICC-profile was
derived)  -- albeit this should not be called a "gamut". Admittedly, this
will involve some extrapolation into a range, where the profile was not
defined by IT8-target fields.

Hermann-Josef

--- Begin Message ---
  • From: "Yves Gauvreau" <gauvreau-yves@xxxxxxxxxxx>
  • To: <argyllcms@xxxxxxxxxxxxx>
  • Date: Thu, 25 Feb 2021 13:56:17 +0100
Hi,

just so I understand better, an input device doesn't have a gamut per say but it as a specific spectral response (SSFs), right?

Maybe that's what Hermann is referring to?

/Yves





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