Dynamically Selecting the Region of Interest (ROI) of an Image in LabVIEW

Updated Jul 13, 2018

Reported In

Software

  • Vision Development Module
  • LabVIEW

Issue Details

I want to build a VI with the Vision Development Module (VDM) that allows me to select the Region of Interest (ROI) in an image while the VI is running. How do I do this?

Solution

There are a few examples that ship with VDM that demonstrate how to do this. To open the Example Finder, select Help>>Find Examples... in LabVIEW. Once it's open, browse to Toolkits and Modules>>Vision.
  • To look at an example of building a linear ROI, open the Histogram.vi example in the Analysis folder.
  • To see an example of a rectangular ROI, look at the Clamp Max.vi example in the Caliper folder.

Related Links

Programmatically Set a Region of Interest (ROI) with NI IMAQdx

Other Support Options

Ask the NI Community

Collaborate with other users in our discussion forums



Request Support from an Engineer

A valid service agreement may be required, and support options vary by country.