“…Indeed, the quantity ´´S G(x, y)d xdy appearing in formula (14), for the computation of M k (S) can be expressed as a linear combination of the moments m 0,0 (S), m 2,0 (S), m 0,2 (S), m 2,2 (S), m 4,0 (S), and m 0,4 (S), (see the expression for G(x, y) in ( 7)). In accordance with [18], the precision of computation of the normalized geometric moments m a,b (S) = (Area_of_S) (a+b+2)/2 • ´´G x a y b d xdy from the corresponding binary image is bounded above with O(1/r), where r is the number of pixels per length unit. So, if picture resolution increases, the error in the computation of the moments used decreases, by the rate of r. The error term can be improved under certain smoothness conditions on the boundary of S (e.g.…”