Datacolor 45IR User Guide, 5.2014, Version 1.0 (4230-0402M)
24
Description of the Density Functions
Densities CMYK
In the measurement function
Densities CMYK
all four partial densities for Cyan, Magenta, Yellow and Black are
displayed.
In this example, a solid Magenta patch was measured. The solid density is:
M = 1.47
But why are densities for the other colors shown as well? Shouldn’t they have a value of 0? No. These are the
so-called
partial densities
. No printing ink is 100 % spectrally pure. There will always be partial colors besides
the actual main color.
This function also makes comparison between measurements and
reference values.
In this example the reference value was not taken from the
reference memory but was measured just before by putting the “soft
key” to
reference
:
Patch for reference measurement
``
Patch for sample measurement
