Method for correcting direction of document image

摘要

There is provided a method for automatically correcting a document image whose direction is incorrect, using character recognition. The method includes the steps of detecting a predetermined portion of a character area in the document image, determining the inclination of the document according to the character recognition reliability of the predetermined portion, and recognizing a character by rotating the document at the determined inclination. A large quantity of documents can be automatically processed and even the visually impaired can scan documents by using the automatic direction correcting feature of the document recognizer.