Untitled

A = [0,0,1;0,1,1;0,0,0];
[a,b] = size(A);
for c = 1:1:(a-1)
    for d = 1:1:(b-1)
        adjacent_counter = 0;
        for m = -1:1:1
            for n = -1:1:1
                row_adjacent = m + c;
                col_adjacent = n + d;
                if ( ( row_adjacent > 0 ) & ( col_adjacent > 0 ) )
                    if ( A(row_adjacent,col_adjacent) == 1 )
                        adjacent_counter = adjacent_counter + 1;
                    end
                end
            end
        end
        if adjacent_counter >= 3
            A(c,d) = 1;
        end
        adjacent_counter = 0;
    end
end