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Gamma Curve Settings
This section describes the procedure for adjusting the gamma level for scanning documents.
Under Windows
1In the ISIS/TWAIN driver properties dialog box, click the [Brightness] tab → click [Gamma].
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1Switch to Advanced Mode and click [Gamma Settings].
2Select the [Custom] check box in the [Gamma Settings] dialog box → specify the settings as necessary.
The [Gamma Settings] dialog box appears.
2Click [Custom] in the list box at the top and then set the respective items.
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