1. A method of processing image data elements derived from lifting an image of an item to reorient the image data elements, the method comprising the steps of: (a) selecting a first portion of the image data elements; (b) reorienting the first portion of the image data elements selected in step (a); (c) selecting a second portion of image data elements after the first portion of the image data elements has been reoriented in step (b); and (d) reorienting the second portion of the image data elements selected in step (c).