[argyllcms] Re: Beta RGB As a Color Workspace

  • From: Graeme Gill <graeme@xxxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Mon, 21 Jul 2014 11:56:52 +1000

Andreas F.X. Siegert wrote:

> Hmm, but that is a camera profile that is used in profiling cameras for a 
> specific
> converter. So it is actually used to describe what the camera can handle in 
> the conversion
> step between the gamut less stage and the working space.

Hi,
        well, no it doesn't. The camera profile describes the colorspace
that the camera emits, but doesn't say anything about the actual ability of
the camera to distinguish between different colors. By default, an output
device is assumed to have limits set by it's per channel range, but for a
camera the device values are the output not input, and this limit is not 
relevant.
You can always adjust the camera exposure to keep the device values within a
valid range.

Bottom line, cameras don't have gamuts.

Graeme Gill.

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