with a 5x5 kernel used in two passes.</p></li>
</ul>
<div class="math notranslate nohighlight">
\[\begin{split}\frac{1}{256} \begin{bmatrix}
1 &amp; 4 &amp; 6 &amp; 4 &amp; 1 \\
4 &amp; 16 &amp; 24 &amp; 16 &amp; 4 \\
6 &amp; 24 &amp; 36 &amp; 24 &amp; 6 \\
4 &amp; 16 &amp; 24 &amp; 16 &amp; 4 \\
1 &amp; 4 &amp; 6 &amp; 4 &amp; 1
\end{bmatrix}\end{split}\]</div>
<ul class="simple">
<li><p>The image is processed in two passes (horizontal and vertical) for efficiency.</p></li>
<li><p><strong>Edge 