Omron FH-3 Series Reference Manual page 384

Changing Model Parameters
The range can be changed as needed to address unstable measurement results. Normally, the factory default
value will be used.
After changing a setting, check whether measurement can be done properly by performing an actual
measurement.
1
In the "Model parameter" area, specify a
value for each item.
Setting item
Boundary
inspection
Boundary level
382
Fine Matching
Set value
[Factory default]
Defects around boundaries with color changes can also be detected. The
edges similar to those in the model image are not regarded as defects.
[Checked] Check this option when inspecting defects around boundaries, such as
chips and burrs. Defects along a direction different from the model image
profile are detected in the range of pixels of profile ± boundary level.
Boundary areas are excluded from the inspection. This can prevent
matching mistakes due to positional deviation of measurement objects,
but defects around boundaries cannot be detected.
"Boundary level" can be used to specify how many pixels around
boundaries should be excluded from the inspection.
Unchecked
Measurement image
0 to 9 Select the degree of assimilation of variations around boundaries.
[3] Depending on the "Boundary inspection" value, the meaning is different.
Description
Model
(1 grid = 1 pixel)
If the measurement object moves up slightly,
its difference with the model will be detected as the edge part.
When setting Edge Measurement to "Disabled", the range of
the "Model edge ± Boundary level" will be outside of the
measurement object.
Example) When "Edge level" is 3, the range with a width of
6 pixels will not be outside of the measurement object.
FH/FZ5 Processing Item Function Reference Manual