Rockwell Automation 5370-CBPK Color CVIM BLISTER-PAK Option - Manual (Page 55)

Chapter 6
Adjusting Blister Windows
6–13
Filter (Binary Morphology)
Use the Filter menu item to display the Pixel/Obj Filter menu, which enables
you to select binary morphology filters for object colors previously learned,
usually during the auto setup process.
NOTE: Separate filter settings are used for enhancing the background color.
When you click on the Filter menu item, the Pixel/Obj Filter and
Processed Color menus appear, as shown in Figure 6.12.
Figure 6.12
Pixel/Obj Filter and Filter Selection menus
The Pixel/Obj Filter menu contains six menu boxes, each of which
represents a level of filtering, and each of which can be assigned a single
filter function. These filtering levels operate together to affect those parts of
the image within one (or all) blister windows that represent the learned object
color selected in the
Processed Color menu (this color is the one used to
display the binary image).
Note that Smoothing is the default selection for the first level of filtering.
When you click on Smoothing , the Filter Selection menu appears, as
shown in Figure 6.12.
The Filter Selection menu contains eight menu boxes, each of which
represents one of the available filtering functions. They are listed below,
along with a brief description of what they do:
•
Identity –– This is a null selection that has no effect on the binary image
in the window. When all six menu boxes are set to Identity , the image in
the window is not affected by any filtering. This is the default selection
for the second through sixth filtering levels.
•
Inverse –– This function changes all white pixels in the window to black
(non-white), and all black (non-white) pixels to white. You can use this
function to invert the image in order to use the
–Isol point function,
which removes isolated black pixels (you typically use Inverse twice, in
cases like this, the second time to invert the image back to its original
non-inverted state).