S T E P 3
Gamma Value Settings
By adjusting the gamma value, you can more closely match brightness of the displayed image to the printed image. Adjust this value if what you see on the screen is very different from your printout.
Hint
• You cannot use this feature with the black and white scan mode, or with the color scan modes when ColorSync is selected.
Matching the Gamma Value to the Display Characteristics
Not all screen displays reproduce color tones in exactly the same way, and this reproduction method is expressed as a gamma value from 1.4 to 2.2 and normally reproduces a slightly dark image.
In order to avoid this and reproduce an image that is faithful to the original, the gamma value must be adjusted in
Gamma value
On the other hand, the data received from
Setting the screen display gamma value causes the scanner gamma value to be calibrated automatically as the inverse value. For example, if the screen display gamma value is set for 1.8, then the scanner gamma value is calibrated for 0.56 (the inverse of 1.8).
Hint
• Please read the documents shipped with your display or contact the manufacturer’s customer service department to obtain the correct gamma value for your particular display model.
•If you intend to adjust the color tone with ColorSync™, change the settings in the ColorSync™ control panel (found within the Control Panels folder) (p. 6) and do not manually change the gamma value settings as described in the following pages.
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