 the background but can dramatically impact
the perimeter of objects, mainly for irregular perimeters such as leaves
with serrated edges.</p></li>
</ul><p>Hierarchically, the operations are performed as opening &gt; closing &gt; filter.
The value declared in each argument will define the brush size.</p></dd>


<dt id="arg-watershed">watershed<a class="anchor" aria-label="anchor" href="#arg-watershed"></a></dt>
<dd><p>If <code>TRUE</code> (default) performs watershed-based object
detection. This will detect 