Rockwell Automation 5370-CVIM2 Module - Manual (Page 455)

Chapter 8
Thresholds, Filters, and Morphology
8–16
When you pick the button (see Figure 8.10, page 8–14), the Morph
2 selection panel appears.
In general, the Morph 1 and Morph 2 filters can each be used in either
binary or gray scale mode; however, specific inspection tools may restrict
either or both filters to a particular mode.
The remainder of this section discusses the details of the binary and gray
scale morphology functions.
Binary Morphology
As shown in Figure 8.12 (page 8–15), the binary selection panel contains
several boxes and a
button.
The boxes in the binary panel, and the method of selecting the parameters
that they represent, are described briefly as follows:
•
Mode –– This box indicates whether the binary or the gray scale
morphology function is selected.
When you pick this box, Binary toggles to Gray , or vice versa.
•
Border –– This box indicates whether pixels outside the processing area
are considered white or black.
Black is the default border selection.
When you pick this box, Black toggles to White , or vice versa.
•
Stage 1 through Stage 6 –– Each of these boxes enables you to select one
of the binary morphology operations for each stage of the morphology
processor. “
Identity ” is the default selection for each stage.
•
Done –– Use the button to save the entries in the binary Morph 1
selection panel entries and exit to the Thresh/Filter panel.
Note the six stages of binary morphology filtering shown in Figure 8.12.
These stages operate sequentially; that is, stage 1 performs the first
operation, then stage 2, and so on. In general, you should set the binary
threshold to achieve the best possible image first, then, if necessary, set up
the morphology functions.
When you pick any of the six “stage” boxes, the Binary Morph function
selection panel appears, as shown in Figure 8.14 (page 8–17).