ROI Type (Blemish)
The Region of Interest (ROI) is the user-defined area on the screen that the sensor will analyze. The ROI Type can be rectangular,
elliptical, or circular. From the menu at the bottom of the ROI Type screen, select the ROI Type to use for the inspection. Adjust the ROI
as appropriate for your inspection. An ROI can be as large as the entire Field of View (FOV).
Inspection > Blemish > ROI Type
Sensitivity
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.
Inspection > Blemish > Sensitivity
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 differ-
ent contiguous edge segments found. Edge segments within the two brackets [ ] are highlighted in green and those outside the brackets
are ignored and colored yellow. You can move each bracket to add or remove more of the edge segments from consideration.
Inspection > Blemish > Edge Length Range
iVu Series Image Sensor
Rev. E
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