The results of the Locator tool provide a base for the ROI The Region of Interest (ROI) is the area of the image where the vision tool operates. in the downstream A downstream tool requires a previously configured upstream tool and its configuration as input. The tool is placed after its upstream tool in the toolchain. tools. Multiple results on a view yield multiple ROIs.

The classes used in the Locator tool provide a filter in the downstream tool. Select the appropriate class in the downstream tool to see the views that are labeled as that class.