n area (<code>area_mean</code>) and the standard
deviation of the area (<code>area_sd</code>) will be computed. For the other measures
(perimeter and radius), the mean values are presented.</p></li>
</ul></li>
</ul><ul><li><p><code>plot_measures()</code> returns a <code>NULL</code> object, drawing the text according to
the x and y coordinates of the objects in <code>object</code>.</p></li>
</ul></div>
    <div class="section level2">
    <h2 id="author">Author<a class="anchor" aria-label="anchor" href="#aut