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Overlays from IMAQ Match Pattern "Matches" Output

by:
‎02-16-2010 05:51 PM
Last Edited by: Member Example_Scrubber_Stephan ‎06-10-2017 08:50 AM

Products and Environment

This section reflects the products and operating system used to create the example.

To download NI software, including the products shown below, visit ni.com/downloads.

    Software

  • Vision Development Module
  • LabVIEW

Code and Documents

Attachment

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Overview

This example demonstrates how to find patterns in and IMAQ Image and overlay the found matches in the image.

 

Description

If you are writing a pattern matching algorithm from scratch, you'll notice that you are provided a Matches array output from the IMAQ Match Pattern VI. The pattern matching VIs do not supply an overlay automatically to show you the location of each match. This example shows you how to modify the Matches output into overlay data such that you can place a bounding box of a desired color around each found pattern.
 

Requirements

 Software

  • LabVIEW Base Development System 2012 (or compatible)
  • NI Vision Development Module 2012 (or compatible)

 Hardware

  • No hardware is necessary to use this example VI

 

Steps to Implement or Execute Code

  1. Download and open the attached file
  2. Run the program

 

Additional Information or References

IMAQ Overlay Match Patterns LV 2012 NIVerified.vi - Front Panel.png

 

IMAQ Overlay Match Patterns LV 2012 NIVerified.vi - Block Diagram.png

 

**The code for this example has been edited to meet the new Community Example Style Guidelines. The edited copy is marked with the text ‘NIVerified’. Read here for more information about the new Example Guidelines and Community Platform.**

--Michelle

National Instruments

Example code from the Example Code Exchange in the NI Community is licensed with the MIT license.