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Spectro LFP qb - Operating Manual
Absolute white calibration
The absolute white calibration method is used to determine the cor-
rect L* a* b* values of the target including its white point. As the L*
value can be as low as 50 or lower for diffuse/opaque materials, this
method is not recommended for linearization and color management
applications as it will not result in accurate calculation of ICC profiles.
Cut off the reference area of the
target to allow the instrument to
calibrate to absolute white.
