Algorithm 3. Normalize function.

Input: $a_{m\times n}$

Output: ${\tilde{a}}_{m\times n}$

1:  function normalize(a)

2:      $[m,n]\leftarrow \mathrm{s}\mathrm{i}\mathrm{z}\mathrm{e}(a)$

3:     if $\mathrm{m}\mathrm{a}\mathrm{x}(a)\ne \mathrm{m}\mathrm{i}\mathrm{n}(a)$ then

4:        $\tilde{a}\leftarrow (a-\mathrm{m}\mathrm{i}\mathrm{n}(a))/(\mathrm{m}\mathrm{a}\mathrm{x}(a)-\mathrm{m}\mathrm{i}\mathrm{n}(a))$

5:     else

6:        $\tilde{a}\leftarrow$ ones(m, n)

7:     end if

8:     return $\tilde{a}$

9:  end function