f="#cb9-2" tabindex="-1"></a>img_smooth <span class="ot">&lt;-</span> <span class="fu">gaussian_blur</span>(img, img, <span class="at">sigma =</span> <span class="dv">2</span>)</span>
<span id="cb9-3"><a href="#cb9-3" tabindex="-1"></a></span>
<span id="cb9-4"><a href="#cb9-4" tabindex="-1"></a><span class="co"># Compare original vs smoothed</span></span>
<span id="cb9-5"><a href="#cb9-5" tabindex="-1"></a>orig_vals <span class="ot">&lt;-</span> img[<span class="dv">30</span><span class="sc">:</span><span c