LaCie blue eye pro
Color Management
User Manual
page 8
3. Color Management
The digital age has brought about many important gains for
color-conscious professionals, whether they work in fields such
as graphic design, pre-press, video or digital photography. With
these improvements, however, new challenges arose.
One of those issues confronting professionals is the variability of
the reproduction of color from one monitor to another.
Every monitor has its own color characteristics. In order to ef-
fectively deal with this variability in monitor “personalities,” it’s
important to have a means of controlling, or managing, this
difference. The most effective color management solution for
monitors involves using a piece of hardware (the LaCie blue eye
Colorimeter) and software (LaCie blue eye pro PE) to adjust and
control the color among different monitors.
To implement color management, it is essential to properly cali-
brate and create custom, individual profiles for all your monitors.
Once a monitor has been calibrated and a profile has been cre-
ated, the profile then communicates with the operating system
and the application software to ensure that images are displayed
accurately.
This section will help to explain how color is created and how
LaCie blue eye pro utilizes calibration and profiles to help you
implement your color management solution.
3.1. Basic Issues With Monitor
Color Rendering
Human perception of color is the result of the addition by our
brain of the stimuli received from three types of nerve cells locat-
ed in our eyes that are sensitive to the red, green and blue areas
of the color spectrum. This is why the method used in a computer
monitor to reproduce color is for each pixel to be composed of
three dots that respectively emit red, green and blue light.
The Three Primaries – Red, Green And Blue
The intensity of the light emitted by the red, green and blue dot
in each pixel is set as a function of three values commonly called
R,G and B. The R, G and B of a given pixel can be set as any
integer value from 0 to 255.
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A pixel set to R=255, G=255, B=0 has its red and green
dots emitting at maximum intensity and the blue dot not
emitting at all. The result is an intense yellow.
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A pixel set to R=128, G=128, B=128 has its three dots
emitting red, green and blue lights at a medium intensity.
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1 pixel = 1 red dot + 1 green dot + 1 blue dot
