Identified by the computer

...BUT NOW THEY ARE IDENTIFIED BY THE COMPUTER

Areas classified by Imagine as impervious accounted for 491,020 of the 886,402 pixels in the scene representing 55.4 % of the land cover or approximately 4,410,216 m²
(441 ha).

What about Landsat MSS?...

Areas classified by Imagine as impervious accounted for 491,020 of the 886,402 pixels in the scene representing 55.4 % of the land cover or approximately 4,410,216 m² (441 ha).

Areas classified by Imagine as impervious accounted for 491,020 of the 886,402 pixels in the scene representing 55.4 % of the land cover or approximately 4,410,216 m²
(441 ha).