eaderlink" href="#region-of-interest" title="Permalink to this heading"></a></h3>
<p>Region of Interest, or ROI, allows users to specify a region of an image. It is defined by the <code class="docutils literal notranslate"><span class="pre">RegionOfInterestParam</span></code> and <code class="docutils literal notranslate"><span class="pre">RegionOfInterestParam.Spec</span></code> protobuf messages. As of 3.3, ROI params are limited to specifying rectangular regions, and really only work well for <code cl