lass="highlight"><pre><span class="n">frames</span> <span class="p">=</span> <span class="n">vl_covdet</span><span class="p">(</span><span class="n">imgs</span><span class="p">,</span> <span class="s">&#39;EstimateAffineShape&#39;</span><span class="p">,</span> <span class="n">true</span><span class="p">)</span> <span class="p">;</span>
</pre></div>


<p>which detects the following features:</p>

<div class="figure">
 <img src="../demo/covdet_affine_frames.jpg"></img>
 <div class="caption">
  <span class="c