1. An image processing apparatus, comprising: a reader configured to read multiple sheets, including a first sheet and a second sheet, and to generate image data; an identifier configured to identify first image data scanned from the first sheet and second image data scanned from the second sheet in the image data generated from reading the multiple sheets, based on determining which one of the first sheet and the second sheet includes a predetermined symbol, the identifier distinguishing between the first image data and the second image data; a marking position detector configured to detect a marking position with respect to the first sheet based on the first image data scanned from the first sheet; and a first character recognizer configured to conduct a first character recognition with respect to an area specified based on the marking position, for the second image data scanned from the second sheet.