You can use a Property Node for the image display to pull the ROI drawn on the image display. The ROI can then be fed into the ROI Descriptor
of your processing VI. An example VI snippet is shown below where we provide the ROI Descriptor
for the Detect Shape VI.Note
: This image is a LabVIEW snippet, which includes LabVIEW code that you can reuse in your project. To use a snippet, right-click the image, save it to your computer, and drag the file onto your LabVIEW block diagram.
You can create an ROI Property Node by:
- Right-click on the image indicator on the block diagram.
- Select Create
- Select Property Node
- Select ROI
- Drop the ROI Property Node down on the block diagram and wire it into the ROI Descriptor input.