1. A medium processing apparatus comprising: an extraction unit for extracting, from an image data obtained by reading a medium on which a plurality of information items satisfying a predetermined relationship are indicated in a plurality of areas, each of said plurality of information items; a recognition unit for recognizing content of each of said plurality of information items extracted by said extraction unit; and a confirmation unit which (i) evaluates whether or not content of said plurality of information items recognized by said recognition unit is correct based on said predetermined relationship, and (ii) confirms, if the evaluation reveals a positive result, content of said plurality of information items as recognized by said recognition unit, and (iii) executes, if the evaluation reveals a negative result, correction of recognition content recognized by said recognition unit, based on said predetermined relationship, to confirm content of said plurality of information items.