Adobe PHOTOSHOP 5.0 User Manual page 91

brightness and contrast controls, you must recali-
brate the system. If you haven't done so already,
after calibrating the monitor consider taping
down your monitor's brightness and contrast
controls and your room's lighting controls.
To calibrate a monitor:
Make sure your monitor has been turned on for
1
at least a half hour, to stabilize the monitor display.
2 Set the room lighting at the level you plan to
maintain.
3 Turn off any desktop patterns and change the
background color on your monitor to a light gray.
This prevents the background color from inter-
fering with your color perception and helps you
adjust the display to a neutral gray. (For more on
how to do this, refer to the manual for your
operating system.)
Start the Adobe Gamma utility located in the
4
Photoshop/Calibrate folder (Windows) or
Photoshop/Goodies/Calibration folder (Mac OS).
Select which version of the utility you want:
5
Step by Step and click OK for a version of the
•
utility that will guide you through each step of the
process. If you choose this option, follow the
instructions described in the utility.
Control Panel and click OK for a version of the
•
utility that is contained in a single dialog box. If
you choose this option, follow the instructions in
the rest of this section.
6 If desired, choose Load and select the monitor
ICC profile that most closely matches your
monitor. Use this as a starting point from which to
calibrate your monitor.
Note: In Windows, the folder
Windows/System/Color is displayed by default, and
contains .icm files in 8.3 format. Select a file to
display the type of monitor ICC profile at the bottom
of the Open Monitor Profile dialog box.
Turn up the contrast and brightness controls on
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your monitor to their maximum settings. Leave
the contrast control at maximum.
For Brightness and Contrast, adjust the
8
brightness control on your monitor to make the
alternating gray squares in the top bar as dark as
possible (but not black), while keeping the bottom
bar a bright white.
For Phosphors, choose a monitor type. If the
9
correct type is not listed, choose Custom, and
enter the red, green, and blue chromaticity coordi-
nates as specified by the monitor manufacturer.
This option accounts for the different red, green,
and blue phosphors used by monitors to display
color.
For Gamma, choose one of the following
10
options to establish your current gamma settings:
View Single Gamma Only to adjust the gamma
•
based on a single combined grayscale reading.
Drag the slider under the gamma preview until the
center box fades into the patterned frame.
ADOBE PHOTOSHOP 5.0 83
User Guide