Example Code

Threshold RGB Original Color Image using the NI Vision Development Module and LabVIEW

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

Overview

This VI demonstrates how to threshold a color image on defined RGB values.

Description

This VI overlays a cross hair on an image and determine the distance to the center of a circle. In this example, the crosshair location can be specified by the user by selecting the location on the example image or by changing the coordinates of the cross hair. The distance from the cross hair to the center of a circle is displayed.

An example without the NI Vision Development Module can be found on the following link:

 

http://forums.ni.com/t5/Example-Programs/Scale-Color-Panes-from-a-Color-Image-without-using-the-NI-V...

 

Requirements

 Software

  • LabVIEW Base Development System 2012 (or compatible)
  • NI Vision Development Module 2012 (or compatible)
  • If running in a Real-Time context, you will need the LabVIEW Real-Time 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 ZIP-file
  2. Open the VI and follow the instructions inside

 

Additional Information or References

 Threshold RGB on Color Image LV2012 NIVerified.vi - Front Panel.png


Threshold RGB on Color Image LV2012 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.**

Paolo F.
National Instruments
Applications Engineer

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