IMAGE PROCESSING DEVICE AND METHOD OF PROCESSING PICTURE DATA

An image processing apparatus, a method and a product for computer program, for processing data of original images photographed divisionally. The apparatus includes: a first detector which extracts a first region having a first attribute and a second region having a second attribute from original images, which have mutually overlapping regions containing a mutual boundary thereof; and a second detector which processes data of the first and second regions extracted by the first detector so as to detect difference in position between the first regions and between the second regions by a suitable algorithm for their attribute, respectively.