262144 points means a 64 point cube.
That's unworkable for calibration unfortunately, for a number of reasons.
Not to list all the problems, but with the fastest probe it would take over 200 hours to profile...
No probe/display can remain stable that long.
More importantly, with colour samples so close together you will get data folding errors (probe resolution errors) which will introduce banding errors into the LUT.
As a result you need to profile with a smaller data set - and then interpolate between the measured points.
This actually means a better level of interpolation is desirable, rather than a lot of points.
We've done a lot of tests on this, and a 16 or 17 point cube is actually optimal.
This doesn't mean the eeColour box is bad, just pointing out that such huge cube sizes can actually not be a good thing.
We've still to have anyone use the eeColour with true 3D LUT data tough, as most of our customers use Pluto or Davio.
if anyone is to be at NAB next month I'll be there and happy to discuss calibration with anyone who fancies a coffee ;o)
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