[colord] How do you calibrate projectors with colord and GNOME Color Manager?

[Richard Hughes]

On 25 January 2015 at 23:16, Jeff Fortin Tam <nekohayo at gmail.com> wrote:
> Has anyone tried calibrating projectors with colord/g-c-m/etc.?

I've done it with a ColorMunki spectro and ColorHug, although the
latter needed a custom CCMX to get any kind of decent result. The
ColorHug also needed the rubber aperture removed, although with the
new more sensitive firmware this might not be required anymore.

> The gnome color user manual documents how to calibrate a screen, a
> camera or scanner, but nothing is said about projectors, including the
> setup, distance, whether you must turn off ambient lighting or not, etc.

Right, it's typically because projector suck :) The gamut is normally
very small.

> And as the GNOME color calibration process creates a small square on the
> center of the screen (instead of making the whole screen a solid color),
> I have a hard time imagining how this can work correctly.

Right. I guess the correct thing to do here would be to set the entire
screen the sample area and to turn off ambient lighting in the room. I
don't think it's something a lot of people have been doing (and I
don't own my own projector) so it's probably the path most untraveled.
Bugs welcome.

Richard