ScanSoft TEXTBRIDGE PROFESSIONAL EDITION 8.5 User Manual page 78

Setting scanning preferences
Scanner preferences control your scanner and the images that it
provides to TextBridge Pro for recognition.
Scanner capabilities vary, thus some preferences may not be
available for your scanner. If you choose to display the TWAIN
user interface, or are using an Adobe Photoshop Import Plug-in,
which always displays a scanning user interface, the scanner
settings options on the TextBridge Pro main window will be
grayed out. For best OCR results, select lineart and a resolution
of 200, 300, or 400 dpi from the scanner manufacturer's interface.
Table 4–2 describes scanner preferences and how to use them.
Table 4–2. Scanner Preferences
Brightness This setting enables you to control how light or
dark scanned page images will be.
Use Normal Image for good-quality office
documents.
Use Lighter Image to provide a brighter page
image to the TextBridge Pro recognition engine. For
example, if your original document has tightly
spaced text, or is a dark photocopy, you may want
to lighten the image. This will cause characters to
thin out a little, and thus spread slightly apart,
helping to improve character recognition accuracy.
Conversely, if your document has very light type or
is faded, you can select Darker Image to make the
print more prominent on the scanned page image.
Note For some scanners, the scanner driver
reverses the effect of the Lighter and Darker
settings in TextBridge Pro.
For scanners that support it, choose the Auto
Brightness setting to automatically apply the
correct amount of brightness to page images.
To adjust Brightness in fine increments, select
Manual and set the slider to the desired setting.
Using TextBridge Pro
4–9