Rockwell Automation 5370-CVIM2 Module - Manual (Page 453)

Chapter 8
Thresholds, Filters, and Morphology
8–14
Figure 8.10 Example: Workpiece Image With White Noise in Background
If left in the window, the unwanted white noise pixels would increase the
total pixel count, and would thus interfere with the accuracy of the inspection
result. By using morphology, however, you can remove or “filter” this noise
from the window, as shown in Figure 8.11.
Figure 8.11 Example: Workpiece Image With White Noise Filtered