
</pre></div>


<div class="figure">
 <img src="../demo/covdet_patches.jpg"></img>
 <img src="../demo/covdet_affine_patches.jpg"></img>
 <div class="caption">
  <span class="content">
    Patches extracted with the standard detectors (left) and adding
    affine adaptation (right).
  </span>
 </div>
</div>

<p>There are several parameters affecting the patches associated to
features. First, <code/>PatchRelativeExtent</code> can be used to
control how large a patch is relative to the feature scale. The exten