All Results displays the Result, Time, Pass Count, and Fail Count
information
at a glance. Expand the
inspection
tool to see
specific
results for that tool.
Count
The total number of edge pixels counted.
Length Range
The minimum and maximum edge lengths found.
Expand Length Range to see the minimum and maximum edge pixels counted, and the total edge pixels for each blemish.
Execution
Time
The
execution
time,
in milliseconds, for the currently selected tool in the current
inspection.
Expand
Execution
Time to see the historical minimum and maximum
execution
times
up to this point for the selected tool.
Use the reset
button
in the
Inspection
Summary to reset these historical values.
Status
Status and error messages display as appropriate.
8.3.4 Using the Blemish Tool
Follow these steps for an example Blemish
inspection
to check for a date/lot code on a product.
Note: This procedure is an example only.
1. Add a Blemish tool to the
inspection.
2. Adjust the ROI to frame the date/lot code.
3. Set the
sensitivity.
a) Expand the
Sensitivity
parameters.
b) Move the slider or enter 75 for this example.
A low
sensitivity
setting
finds
only high contrast edges, while a high
sensitivity
setting
finds
lower contrast edges as well.
Note that the color does not
matter;
the tool will
still
find
the edges of the date/lot code.
Figure 108. Light Date/Lot Code on a Dark Background
Figure 109. Dark Date/Lot Code on a Light Background
4. Leave the default minimum and maximum edge length range (100 px and 165000 px).
This
defines
how long the edge has to be before it is counted and how small it can be before it is ignored. Green means that the
edge is within the criteria to be counted and yellow means it is outside of the criteria and is being ignored.
5. Set the Test parameters to set the pass/fail criteria.
a) On the Test tab, select the Count checkbox.
This
option
sets the number of edges that must be present within the ROI that match the
inspection
parameters so that the
tool passes.
b) Move the sliders or enter the minimum count at 242 and the maximum count at 233230.
For example, a minimum and maximum count of 0 and 0 means that the part must have zero edges within the ROI that
match the
inspection
parameters. In this case, the part must be blemish-free.
Note: The green bar indicates the current count and the light gray background indicate the count over
time
since
the last reset.
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