     ( PIXEL_AT(-2, 0) * 0.0314 ) + ( PIXEL_AT(-1, 0) * 0.0753 ) + ( PIXEL_AT(0, 0) * 0.0942 ) + ( PIXEL_AT(1, 0) * 0.0753 ) + ( PIXEL_AT(2, 0) * 0.0314 ) +
                         ( PIXEL_AT(-2, 1) * 0.0252 ) + ( PIXEL_AT(-1, 1) * 0.0566 ) + ( PIXEL_AT(0, 1) * 0.0753 ) + ( PIXEL_AT(1, 1) * 0.0566 ) + ( PIXEL_AT(2, 1) * 0.0252 ) +
                         ( PIXEL_AT(-2, 2) * 0.0126 ) + ( PIXEL_AT(-1, 2) * 0.0252 ) + ( PIXEL_AT(0, 2) * 0.0314 ) + ( PIXEL_AT(1, 2) * 0.0252 ) + ( PIXEL_AT(2, 2) * 0.0126 );

 