[Lcms-user] Calibrating variable dot printers...

[Alex <pi...@ma...>]

Hey I'm looking writing a custom calibration tool and I'm stumped at a
couple things. Apparently printers can be calibrated with density
measurements, lightness, brightness and I'm sure there are more. I'm
choosing to go with brightness derived from XYZ using the Brightness,
Chroma, Hue model. Has anyone experimented with this? I'm also curious as to
how to properly calibrate the SML, small, medium, large dot sizes.... I'm
assuming the target patches get printed with a linear calibration (perhaps
with ink limits) so at certain thresholds the ink sizes have to increase in
order to capture them. Versaworks and I'm assuming other RIPs do this but
I'm not sure how they implement it exactly and would like to know. If it's
simple enough I'd like to try.