Color Model - Konica Minolta magicolor 2350 Reference Manual

Color Model

A monitor and a color printer
have limited color ranges
compared to the range of col-
ors visible to the human eye.
In the illustration we have
identified the range of colors
that a monitor is able to pro-
duce and the range of colors
a color laser printer may pro-
duce. This range of colors is
called a gamut and is device
dependent. To print identical
colors on a color laser printer
as the design looks on the
monitor, we first need to
translate the profile of the
monitor to a standard color
space and then translate this
to a color laser printer profile.
The standard color space
most commonly used for
these translations is CIE LAB.
The CIE LAB color space is based on the human perception of color. Looking
closely at the CIE LAB color model, we notice that the gamuts for both
devices are different. This means that the monitor may produce certain colors
we cannot accurately print on a color laser printer. This is called the
out-of-gamut range. This phenomenon is solely caused by the physical prop-
erties of such a device. Therefore, the translation module also needs to cor-
rect this out-of-gamut range or translate as close as possible.
Color Management
Chapter 4.1—167