Circle Setting (EC Circle Search)

This item registers the size of the circle to search for.

Set the circle size only with the circumference figure.

In the Item Tab area, tap [Circle register].
When setting a new circle, you do not need to tap [Circle register].
Set the search circumference using the drawing tools.
In the figure setting area, tap [OK].
The circle to search for is registered.
Tap [Edge extraction] and set values.
Extracting edges

Extracting Edges

In an EC circle search, processing is executed on the edge extraction image.Change this item as necessary when the edge is not extracted or is extracted along with noise.

In the Item Tab area, tap [Edge extraction].

In the "Edge extraction setting" area, tap [...] or [

] for each item and set the values.

The "Edge level" value can be specified by dragging the slider or tapping one of the buttons at either end of the slider.

Edge extraction - "Edge extraction setting" area

Setting item	Set value [factory default]	Description
Mask size	3x3 [5x5] 7x7 9x9	Select the range of pixels which are used to extract the edge. With a larger mask size, search is less affected by variation in pixels.
Edge level	0 to 255 [100]	Adjust the edge extraction level when the edge is hard to see due to low contrast with the background or when unnecessary background noise should be removed.