4. Click the [Sensor Name] to open the sensor parameters menu.
Figure 106. Parameters Menu
5. Set the sensor parameters.
• Adjust the Sensitivity parameter.
Use Sensitivity to fine-tune how sensitive the sensor is to finding blemish or other edges within the ROI.
The sensitivity value helps account for light variations that might affect how well the sensor detects edges on
inspected parts. The sensitivity scale is from 0 to 100, where 0 means least sensitive and 100 means most
sensitive. If set near 0, the sensor only finds very sharp edges with strong contrast. If set near 100, the
sensor finds very dim or blurry edges, and may be unstable due to noise within the image.
Use the slider to adjust the sensitivity, watching as the sensor detects more or fewer edges.
Figure 107. Sensitivity Screen
• Adjust the Edge Length Range.
The sensor counts all the edge pixels it detects in the ROI. The bar at the bottom of the Edge Length Range
screen shows all the different contiguous edge segments found. Use the slider brackets to specify the edge
length range in pixels. Edges found within this range are considered to calculate the Pass Count. Edge
segments within the two brackets [ ] are highlighted in green and those outside the brackets are ignored and
colored yellow. Move each bracket to add or remove more of the edge segments from consideration. Zoom
in to refine the range.
Figure 108. Segments in Yellow are Ignored
Figure 109. Segments in Green are Included
• Set the Pass Count parameter.
The sensor aggregates all of the edge pixels that fall within the Edge Length Range and indicates the value
with a small colored bar at the bottom of the screen. If the result is within the range brackets, the bar is
green, otherwise it is yellow.
iVu Plus TG and Color Gen2 Image Sensors
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