Advantech VisionNavi User Manual page 59

[Diameter dir.]
Inner diameter
···················Detect the distance of the innermost pair from the extracted edge.
Outer diameter
···················Detect the distance of the outermost pair from the extracted edge.
Specified edge
···················Specify the target edge from extracted edges.
[Edge dir.]
Light -> Dark
···················Detect where the image changes from light →dark in the edge search
direction.
Dark -> Light
···················Detect where the image changes from dark →light in the edge search
direction.
[Edge strength]
The threshold to be detected as an edge when the most clear edge in the target part
is 100. It is possible to adjust to a stable value while referring to the edge intensity
distribution.
[Min strength]
Increasing the value prevents detection of ambiguous edges.
[Width]
The width of the guide frame for edge detection can be adjusted.
[Target edge1, 2]
It is set when [Specified edge] is selected in [Radial direction].
[Filter (sigma)]
Increasing the value makes it difficult to mistake the noise component of the image
as an edge.
[Unit conversion]
Convert the detection result to the specified unit with the mm / pix information set with
the camera setting tool.
53 VisionNavi User Manual