Circle Setting (Ec Circle Search) - Omron FH-3 Series Reference Manual

Circle Setting (EC Circle Search)

Registers the size of the circle to search for.
Set the circle size only with the circumference figure.
1
In the Item Tab area, click [Circle register].
When setting a new circle, you do not need to click [Circle register].
2
Set the search circumference using the drawing tools.
3
Click [OK] in the Figure setting area.
• [OK]: Changes the settings and returns to the previous menu.
• [Cancel]: Changes are discarded. Returns to the previous menu.
• [Apply]: Updates the settings without leaving edit window.
4
Click [Edge extraction] and set values.
Reference: Extracting Edges (p.147)
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.
1
In the Item Tab area, click [Edge extraction].
2
In the "Edge extraction setting" area,
click [...] or [ ] and specify a value for
each item.
The "Edge level" value can be specified by
dragging the slider or clicking one of the
buttons at either end of the slider.
Setting item
[Factory default]
• 3 × 3
• [5 × 5]
Mask size
• 7 × 7
• 9 × 9
0 to 255
Edge level
[100]
FH/FZ5 Processing Item Function Reference Manual
Set value
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.
Change this when the edge is hard to see due to low contrast against the
background or when unnecessary background noise must be removed.The
smaller the value, the easier it is to find edges. The larger the value, the less
noise will affect finding edges.
Description
EC Circle Search
2
147