ScanSoft TEXTBRIDGE PROFESSIONAL EDITION 8.5 User Manual page 128

Zoom in to see how dark or
light the image is
6–4
Try Lighter Image if characters on your page appear too bold, are
starting to fill in or are touching, or words are separated by very
small spaces (as in some magazines).
Recognition of documents with background noise, or with
screened or colored backgrounds, can improve considerably by
increasing the brightness setting.
Try Darker Image if characters on the page appear faint, broken,
or very thin.
If your scanner supports the Auto brightness setting, select this
to achieve the best level of brightness for each page of a
document.
To adjust Brightness in fine increments, click Manual and set the
slider to the desired setting.
Another way to tell if brightness is adequate is to preview a page
and zoom in to full resolution in the Preview window. This, in
effect, lets you view the scanner output that the system "sees"
(Figure 6–4).
Figure 6–4. Preview display magnified
If the previewed image is too dark or too light, you can adjust the
brightness setting and click Rescan.
TextBridge Professional Edition User's Guide