Fujitsu fi-5950 Operator's Manual page 74

[Gamma] tab
Pattern
Specifies how to correct Gamma. Available correction patterns are: "Normal", "Soft", "Sharp".
"Custom" is selectable when "Color" is selected on the Main tab.
Camera
Specifies side(s) to which you want to apply the settings made on this window.
Custom Properties
Can be specified when "Cutom" is selected in the "Pattern" list.
You can specify the numeric values of items such as "Gamma", "Brightness", "Contrast",
"Shadow" and "Highlight".
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2.13 Configuring the Scan Settings