SC2000 Series Vision Sensor User Manual
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Edge Polarity
It has three modes, including White to Black, Black to White, and Any. White to Black refers to
the transition from the area with a low gray value to the edge of the area with a high gray value.
Black to White refers to the transition from the area with a high gray value to the edge of the
area with a low gray value. Any refers to both edges are detected.
Edge Threshold
It is also called gradient threshold, and its range is from 0 to 255. The edge point whose gradient
threshold is larger than this value can be detected. The larger the value, the stronger noise
resistibility, the smaller the number of edges obtained, and even the target edge points are
filtered out.
Filter Size
It is used to enhance the edge and suppress noise, and its min. value is 1. When the edge is
blurred or there is noise interference, you can increase its value to make the detection result
more stable. If the distance between the edge and the edge is smaller than the filter size, it will
affect the accuracy of the edge location or even lose edge. This parameter value needs to be set
based on the actual situation.
Caliper Quantity
It is used to scan ROI area quantity of edge points.
Ignored Point
It means that the number of minimum points that have high error to be excluded from fitting. In
general, if there is a great number of points excluded from fitting, its value should be set higher.
For better results, it is recommended to use it in combination with the parameter of distance to
remove.
Caliper Width
It is the width of the caliper.
Initial Locating
When enabling, the algorithm locates the best circle.
Subsampling Coefficient
The larger the subsampling coefficient, the less initial location time will be. It is recommended
not to set this parameter value too large.
Locating Sensitivity
It is used to eliminate the interference points. The larger the value, the stronger the ability to
eliminate noise interference, but it is also easy to cause the initial location of circle failure.
Initial Fit Type
It has two types, including Global Fit and Local Optimum. Global Fit is used to find global
feature points and fit circle. Local Optimum is used to fit the circle according to the local feature
points.
Fit Mode