ct is a
square, then the <code>radius_max</code> of such object according to the Pythagorean
theorem will be <code>L x sqrt(2) / 2</code> where <code>L</code> is the length of the square side.</p></li>
</ul></dd>


<dt id="arg-id">id<a class="anchor" aria-label="anchor" href="#arg-id"></a></dt>
<dd><p>An object in the image to indicate a known value.</p></dd>


<dt id="arg-dpi">dpi<a class="anchor" aria-label="anchor" href="#arg-dpi"></a></dt>
<dd><p>A known resolution of the image in DPI (dots per inch).</