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Software Module
The current character is compared with the character from the character set and coin-
cidence is evaluated. The higher the value the greater the coincidence. The acceptance
value specifies the minimum degree of coincidence which must be achieved for the cha-
racter to be read out as recognized.
11.15. OCR-Tip
This chapter is intended to explain the basic requirements for setting up wenglor’s OCR Reader. By conside-
ring several important attributes, it can be determined whether or not this product is suitable for the respective
application.
In actual practice, a great number of ambient conditions influence whether or not reading will be successful.
This document only deals with the issues of geometry and contrast.
The most important attributes are:
• Character geometry
• Quiet zone
• Background / contrast
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