NUANCE OMNIPAGE PRO 6 - REFERENCE FOR WINDOWS, Справочное руководство

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OCR
Technical Information 231
4 Re-recognize the document.
Document Image Problem in Zone Window
You may see vertical lines running through the document image or no
image in the zone window and then receive garbage or nothing after OCR.
The memory address for your scanner interface card is probably
interfering with the memory address for your video display adaptor. Use
the instructions in your scanner documentation to move the scanner
interface card to a different memory address.
You could also try using a standard VGA video driver.
Fax Recognition Problems
Recognizing faxes accurately can be difficult. A typical fax machine
produces documents at 200x100 or 200x200 dpi. A typical scanner scans at
300x300 dpi. This means there is less information to work with on a fax.
Recognition accuracy may not be as good as on the printed original. Also,
faxes printed on thermal paper are more difficult to scan than a document
on regular white paper. Try this to improve fax recognition accuracy:
• Have senders select Fine (or Best) Mode when they send you a fax.
This sets scan resolution at 200x200 dpi.
• Have senders transmit files directly to your computer via fax
modem if you both have one.
Fax modem transmissions are much clearer than fax machine
transmission because there is no scanning involved. Load the fax
file as an image in OmniPage and then recognize the text.
• It also helps if senders use a sans-serif font that is 11 points or larger
on clean white paper. There should be no marks, smears, or
doodles on the page.
Formatting Issues
This section provides workarounds for possible formatting problems.
True Page and WordPerfect for Windows 5.2
You cannot scroll a one-page document containing True Page output in
WordPerfect for Windows 5.2. To view a document, try recognizing your
document with the
Retain Font and Paragraph Formatting option in the OCR
settings panel instead of True Page - Retain All Page Formatting
.