I need only an a report for this code :

clc clear sigma $=$ sqrt$(2)$;x $=-4$:$0\mathrm{.}1$:$4$;y $=$ x;$[$X$,$Y$]=$ meshgrid$($x$,$y$)$;Z $=(-1/($pi$*$sigma$^4))*(1-($X$^2+$Y$^2)/(2*$sigma$^2)).*$exp$(-($X$.^2+$Y$.^2)/(2*$sigma$^2))$;h $=$ fspecial$(\text{'}$log$\text{'},[9,9],$sigma$)$;h $=$ round$($h $/$ abs$($min$($h$($:$)))*40)$;image $=$ imread$(\text{'}$cat$.$jpg$\text{'})$;filtered$\_$image $=$ imfilter$($image$,$ h$)$;$\%$ Display the original and filtered imagesfigure;subplot$(121),$ imshow$($image$),$ title$(\text{'}$Original Image'$)$;subplot$(122),$ imshow$($filtered$\_$image$),$ title$(\text{'}$Filtered Image'$)$;