Character recognition apparatus and a method for identifying machine-printed and hand-printed characters. A character is optically scanned and converted to a rectangular matrix representation containing black and white points. The matrixed character is pre-processed by a non-iterative line-thinning technique...http://www.google.fr/patents/US4162482?utm_source=gb-gplus-shareBrevet US4162482 - Pre-processing and feature extraction system for character recognition
Pre-processing and feature extraction system for character recognition
