An image processing apparatus (200) includes a specific information extracting processor (241) that extracts specific information that is represented by an image and included in image data, based on a specific information extracting program loaded into the specific information extracting processor, a variable factor recognizing mechanism that recognizes a variable factor of the image data from which the specific information is extracted by the specific information extracting processor (241), and a program loading mechanism that selects one of a plurality of specific information extracting programs stored in a storage area. The selected specific information extracting program corresponds to the recognized variable factor of the image data and is suitable for extracting specific information included in varied image data. The program loading mechanism further loads the selected specific information extracting program into the specific information extracting processor (241).