Patent ID: 8786911

Claim:
An image processing device comprising: a history record storage unit that stores a history record comprising text information and a page number that are embedded in a two-dimensional code printed on each sheet of a combined image; an image sequence acquisition unit that acquires a read image sequence comprising read images that are sequentially read by an image reading unit from each of a plurality of sheets on which the two-dimensional code is printed; a page number specifying unit that specifies the page number corresponding to each of the read images in the read image sequence using a reading result of the two-dimensional code image in the read image; a page number determining unit that determines the page number corresponding to a target image which is a read image of which the page number is not specified by the page number specifying unit, using a position of the target image in the read image sequence, a position in the read image sequence, of the read image of which the page number is specified by the page number specifying unit, and the page number corresponding to the read image of which the page number is specified by the page number specifying unit; a decoding text information specifying unit that specifies decoding text information corresponding to the target image using the text information that is stored in the history record storage unit and the page number corresponding to the target image that is determined by the page number determining unit; and a print unit that prints a two-dimensional code in which the specified decoding text information is embedded.