1. A character recognition method comprising the steps of: optically scanning a character to be recognized which is formed of an ordinary character on which there is provided a plurality of marks characterizing said character; converting the image of marked character to an electrical image signal; extracting only those signal portions relating to the marked portions of the character from said image signal; and discriminating said character by comparing the image information of said marked portions with standard information relating to standard image patterns stored in advance, wherein said marks are formed on said character in the outline of a polygon and said character recognition is conducted by comparing the coordinates of the center of gravity of such polygon formed by the arrangement of said marked portions to the coordinates of the center of gravity of marks formed on various standard characters to select a standard character corresponding to said optically scanned character.