Rockwell Automation 5370-CVIM2 Module User Manual

Page 312

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Chapter 7

Inspection Tools

7–74

Figure 7.62 Example: Effect of Average 5x5 Kernel on Inspected Object

Image

tool

Inspected

object

User 3x3, User 5x5 Kernels

The

User 3x3

and

User 5x5

kernels can be configured with coefficient

values that the user deems most appropriate for a specific inspection
application. Initially, these kernels are configured in the “identity” mode; that
is, the center coefficient is 1 and all other coefficients are 0, as shown below:

0

0

0

0

0

0

0

0

0

0

0

0

1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

0

0

0

0

The result of these “identity” coefficients is that they have no effect on the
pixels in the image.

When you pick

User 3x3

or

User 5x5

in the

Image Kernel

selection panel,

the

button becomes active, as shown in Figure 7.63 (page 7–75).

When you then pick the

button, the

User Kernel

setup panel

appears, also shown in Figure 7.63.

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