[argyllcms] Re: Beta RGB As a Color Workspace

  • From: Graeme Gill <graeme@xxxxxxxxxxxxx>
  • To: argyllcms@xxxxxxxxxxxxx
  • Date: Thu, 17 Jul 2014 21:38:13 +1000

Edwin Blenkinsopp wrote:
> 'Its possible to do a per-image colourspace analysis and to map the
> convex hull of the image data to the destination colourspace; and to
> have a smooth progression from "keep colours the same" near the middle
> through "move them a little" near the edges and "clip less than 2% of
> pixels" at the edges. but not in an ICC defined gamut mapping, I
> think.'

> Thats a great definition of whats needed for bulk conversion to web images
> Any offers of any scripts thev have tried to achieve something like this?
> regards

Well, the above is a pretty good description of what Argyll can do
using a tiffgamut + collink + cctiff workflow, and making use of
ICC based device profiles and device links. You do have to trade precision
for speed a little - collink -g is going to faster than collink -G in creating
the per image color transform, but -G is going to be more precise.

Graeme Gill.

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