2-38 Understanding EPSON TWAIN Pro Features
Image Controls
Click the Image Controls button to open the Image Controls
dialog box. This dialog box allows you to make a wide range of
image adjustments, as described below.
Note:
❏ The Image Controls settings are not available when Text
Enhancement Technology is selected in the Image Type dialog
box.
❏ The Image Controls button is unavailable when one or more
marquees are selected in addition to the active marquee.
❏ The Image Controls settings are optimized automatically when you
scan without previewing.
❏ If Pixel Depth is set to Black & White and Halftone is set to None
in the Image Type dialog box, all settings except Threshold are not
available.
❏ The Gamma, Highlight, and Shadow settings are overridden by the
Auto Exposure feature. Be sure to use the Auto Exposure feature
before making these settings. See “Auto Exposure” on page 2-37 for
more information on using this feature.
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