Datasheet

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USER'S GUIDE
When a limited number of symbols should be recognized, the IRISPen’s accu-
racy and speed can be improved by narrowing down the output subset. The user
could for instance enter serial numbers and product codes where the numerals
are completed by a few alphabetic symbols in a database.
This is all the more important as OCR may generate recognition errors for
those symbols with very similar characteristics. When errors do occur, they usu-
ally concern "B" and '8', "O" and '0', "l" and '1' etc.
The user adds and removes symbols by clicking them. Some buttons are avail-
able to add and remove entire ranges of characters simultaneously: "Select All",
"Select 0-9" etc.
A concrete example is creating an OCR-B character set which limits recog-
nition to the numerals and the symbols "<", ">" and "+". (OCR-B is at the same
time a highly specialized typeface used only in financial documents such as printed
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