A unit for an method of analyzing received image data to determine whether the received image data corresponds to a single-view or to multiple views is disclosed. The method comprises: dividing the received image data ( 200 ) into a number of structures ( 1 - 9 ) of data elements ( 224 - 234 ); computing a correlation between a first one ( 1 ) of the structures of data elements and a second one ( 2 ) of the structures of data elements; and establishing that the received image -data corresponds to multiple views on basis of the correlation between the first one of the structures of data elements and the second one of the structures of data elements.
