Detect Edges with the Simple Edge Tool

NI Vision Assistant

Detect Edges with the Simple Edge Tool

  1. Select the Simple Edge Tool from the Edge Detector list.
  2. In the image, click and drag to select a path along which to search for edges. Vision Assistant displays a line profile describing the path and lists the number of edges found along that path.
  3. Select the option from Look For that specifies which edges you are looking for.
  4. Set the Level Type. Absolute Value specifies the threshold level in pixel intensities, and Relative Value specifies the threshold level as a percentage of the intensity range found in the line of pixels.
  5. Set the Threshold Level (intensity level that you expect to constitute an edge) or click and drag the cursor on the line profile to position the cursor at the appropriate threshold level.
  6. Click OK to add this step to the script and close the Setup window.
Tip  You can move the ROI using the arrow keys on the keyboard.