Re: [Gimp-developer] Code for editing in non-sRGB color spaces

[Elle Stone <ellestone ninedegreesbelow com>]

On 04/13/2016 05:18 PM, Elle Stone wrote:
> I'm preparing patches that are close to being actually useable instead
> of being merely "proof of concept". It will take a few more days of
> coding to finish.

I attached the new patches to 
https://bugzilla.gnome.org/show_bug.cgi?id=737778 and also updated 
"Modifying bab/GEGL/GIMP for editing in user-chosen RGB working spaces" 
(http://ninedegreesbelow.com/photography/gimp-edit-in-user-chosen-rgb-working-space.html).

The patches need a lot of testing. Some parts don't work yet. In particular:

* There needs to be code in GIMP that makes a new profile using the 
user's RGB profile's colorants and the sRGB TRC. GIMP already has code 
that makes a new profile using the user's RGB profile's colorants and 
the linear gamma TRC, but this code is only triggered when the user 
changes from "gamma" to "linear" precision.

* The decompose-to-LAB/LCH plug-in code doesn't produce the right 
results, though the LCH blend modes are correct and GEGL's saturation 
code works.

* Sometimes the switch between linear and gamma precision doesn't work 
correctly, though possibly I managed to fix this.

Best,
Elle