• Adjust the Sensitivity parameter. Sensitivity is used 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. The Sensitivity scale is from 0 to 100, where 0 means least
sensitive and 100 means most sensitive. If set near 0, the sensor will only find very sharp edges with
strong contrast. If set near 100, the sensor will find very dim or blurry edges, and may be unstable.
1.
Use the slider on the bottom of the screen to adjust the sensitivity watching as the sensor detects
more or fewer edges.
•
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. Edge
segments within the two brackets [ ] are highlighted in green and those outside the brackets are ignored
and colored yellow as in the example. You can move each bracket to add or remove more of the edge
segments from consideration.
1.
Move the slider at the bottom of the screen to the to the desired Edge Length Range. You can zoom
in to refine the range.
•
Adjust the Pass Count parameter. The sensor aggregates all the edge pixels that fall within the Edge
Length Range and indicates the value with a small colored bar at the bottom of the page. If within the
range brackets, the bar is green, otherwise it is yellow.
iVu Plus TG Gen2 Image Sensor
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