There are several ways to improve the accuracy of the preview.
Most involve software that sends a series of (known) colour samples
to the screen. A device, either a colorimeter or a spectrophotometer,
is attached to the screen and reads the colours as they are displayed.
From this data a profile can be made that reflects the state of
the screen and can be used to modify the way colours are displayed.
To improve the quality and effectiveness of the process another
step called ‘pre-calibration’ can be added. This is
most effective where individual control of the red, green and blue
colour guns in the monitor is available, pre-calibration should
be used on all CRT type monitors and some LCD panels.
Method |
Benefits |
Downside |
Use
Apple Display Calibrator or Adobe Gamma or similar program
Rating: 
|
•
Works on the premise that if we visually balance the red,
green and blue values of the monitor we’ll get accurate
colour – better than nothing.
•
Costs nothing to try it.
|
Everyone
views colour differently, so there is no guarantee of match
between monitors or monitor to print. |
Buy
an inexpensive calibration device and software
(>$500)
Rating:
|
•
Can be used to calibrate the monitor and write profiles (with
the right software).
•
Convenient and available when required. |
There
have been many reports of inconsistencies in individual devices.
|
Buy
a quality calibration device and software
Rating:
|
•
Can be used to calibrate the monitor and write profiles (with
the right software).
•
Convenient and available when required.
•
Can objectively check calibrations after setting.
•
Can calibrate and profile both CRT and LCD monitors.
•
Quality equipment uses a calibration tablet to ensure that
the device itself is calibrated. |
•
Expensive for occasional use.
•
High level of expertise required to be effective.
•
Need to upgrade software & equipment regularly. |
Professional
on–site profiling services
Rating: |
•
Highest grade equipment and software.
•
High level of expertise and experience.
•
Able to balance individual colours and write calibration details
to video cards.
•
Can objectively check calibrations after setting.
•
Can calibrate and profile all your equipment.
•
Use the most up to date solutions.
•
Pay for the service as you need it. |
•
Not suitable for very remote users as it must be done on site. |
