This Device is used to detect alphabetic and numeric characters that are printed on the paper. These Characters can be handwritten or typed. These words must follow a standard size and no style should be used. If characters are typed than they must be typed using special OCR fonts. The standard OCR fonts are: OCR-A (American Standard) and OCR-B (European Standard).
Working: Once the whole Character is scanned it is compared with recognized standard character patterns. If the character matches or nearly matches it is considered that character is read. If the character does not match it is rejected.Fig. given below shows a handheld character reader.
Working: Once the whole Character is scanned it is compared with recognized standard character patterns. If the character matches or nearly matches it is considered that character is read. If the character does not match it is rejected.Fig. given below shows a handheld character reader.
No comments:
Post a Comment