1. A character recognition device comprising: an acquiring unit that acquires image data describing pixel values representing colors of pixels constituting an image; a binarizing unit that binarizes the pixel values described in the image data acquired by the acquiring unit; an extracting unit that extracts boundaries of colors in the image represented by the image data acquired by the acquiring unit; a delimiting unit that carries out a labeling processing on the image represented by the image data acquired by the acquiring unit to delimit a plurality of image areas in the image; a specifying unit that specifies, with regard to first image areas arranged according to a predetermined rule among the plurality of image areas delimited by the delimiting unit, pixels binarized by the binarizing unit, corresponding to the first image areas, as a subject for character recognition, and specifies, with regard to second image areas not arranged according to the predetermined rule among the plurality of image areas delimited by the delimiting unit, pixels of areas surrounded by boundaries extracted by the extracting unit, corresponding to the second image areas, as a subject for character recognition; and a character recognition unit that recognizes characters represented by the pixels specified by the specifying unit as a subject for character recognition.