[RFC wayland-protocols] Color management protocol

Chris Murphy lists at colorremedies.com
Fri Jan 13 19:39:44 UTC 2017

On Fri, Jan 13, 2017 at 9:03 AM, Pekka Paalanen <ppaalanen at gmail.com> wrote:

> That's an excellent idea! Could you recommend some, so I don't pick a
> random "oh, but they're doing it wrong" video?

I'd say probably none of them are doing it wrong, but come with
editorialization of what's happening that they can't prove (and are
often wrong about ). So either watch it with the audio muted; or just
take their conclusions with a grain of salt. For example, I often hear
calibration as fixing course problems with a display, and profiling
fixes remaining inaccuracies after calibration. Wrong. Profiling is
just measuring and recording those measurements, it says nothing about
the rightness or wrongness of the display. It's just a bidirectional
lookup: RGB to XYZ (or Lab) and XYZ (or Lab) to RGB. The profile
itself does not change a display's behavior, it takes two or more
profiles to define a transform, and it's that transform that
(indirectly) moderates the display's behavior; or even the
application's behavior for that matter.

Chris Murphy

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