[argyllcms] Re: Beta RGB As a Color Workspace

  • From: Ben Goren <ben@xxxxxxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Wed, 16 Jul 2014 17:37:22 -0700

On Jul 16, 2014, at 5:24 PM, Troy Sobotka <troy.sobotka@xxxxxxxxx> wrote:

> Perceptual or other non-linear (either scene linear or display linear) spaces 
> will not composite correctly.

Large gamut working spaces make even less sense in such situations. You know 
exactly what you're outputting to, so you have no excuse for using a working 
space significantly larger than the union of that set. Get your images within 
the gamut of your working space initially, and then manipulate them. There 
aren't any artistic questions that need to be delayed in such a process; either 
you've mapped tonality and saturation into something you can work with, or you 
haven't. Once you have, there's nothing significant to worry about resolution 
with respect to hue shifts (and certainly not decreased saturation -- with the 
saturation by definition impossible to increase), and if you can't get the 
tonality within shouting distance of your final vision with the initial 
conversion then you don't have the dynamic range you need, period.

After that initial RAW conversion, your edits really shouldn't be so radical 
that they push the limits of a sane working space; and, if they are, it's no 
big deal to do another RAW conversion (perhaps even as its own layer for some 
specific effect).


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