Not an expert here, but I would expect the most accurate thing to do is it take
emissive (monitor) measurements using the actual sign holder, or at least its
same exact light source (particular model of white led strip backlight?). This
should rule out metamerism color shift effects.
As a theoretical aside if there are varied light sources and backlight
technology, it is theoretically possible if you measured the film using a
spectrally known/uniform light source (tungsten halogen bulb) as a reference
set. Then take a quick single measurement of the light source of whatever
backlight that particular print will be in use on. Then (again theoretically)
normalize and subtract out the reference light source and add back in the new
light source and create a new profile from this set. Maybe Argyll has this
kind of function built in? Otherwise some excel would be involved or some
coding.
On Nov 22, 2017, at 10:15 PM, Tony Mah <tonymah@xxxxxxx> wrote:
Wondering if this is possible?
I have an NEC monitor with a 3d LUT set at D65, could I:
1. print a sheet of backlit film with color patches
2. display white on the monitor
3. put the film on my calibrated monitor
4. use my i1pro and measure each patch like a piece of paper
5. generate an rgb profile that will work on my printer?
In theory if the backlit display of the sign holder is 5000k, I should be
able to calibrate my NEC to 5000K and profile patches on the printed file.
What do you guys think?
