 4 \\
5 &amp; 12 &amp; 15 &amp; 12 &amp; 5 \\
4 &amp; 9 &amp; 12 &amp; 9 &amp; 4 \\
2 &amp; 4 &amp; 5 &amp; 4 &amp; 2
\end{bmatrix}\end{split}\]</div>
<ul class="simple">
<li><p>The kernel values are normalized internally to ensure proper smoothing.</p></li>
<li><p>This method helps remove high-frequency noise while retaining important image structures.</p></li>
</ul>
<p><strong>Parameters:</strong></p>
<ul class="simple">
<li><p><strong>surface_ (pygame.Surface, 32-bit or 24-bit image):</strong>