\subsubsection usage Usage
\verbatim
<node name="vqimg" pkg="vqimg" type="vqimg">
  <param name="hue" type="double" value="0.0" />
  <param name="min_sat" type="double" value="0.5" />
  <param name="min_val" type="double" value="0.5" />
</node>
\endverbatim

