Omron FH-3 Series Reference Manual page 138

Mask any Unnecessary Items.
By registering a mask, the part you do not want included in the model is excluded.
1
Click [Mask register].
2
Draw the mask figure using the drawing tools.
3
Click [OR/NOT].
The mask figure is displayed in red.
4
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.
Adjusting the Edge Level
In an ECM 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.
Important
• In model registration, extract as much of the edge as possible, then delete noise etc. in the mask registration to register
the entire edge of the model. On the other hand, when measuring, even if the edge has skips, an image with the noise
suppressed makes it possible to search the model stably. To set separate edge extraction conditions for model
registration and for measuring, after registering the model, change the edge extraction conditions.
1
In the Item Tab area, click [Edge extraction].
2
Set the items in the "Edge extraction
setting" area.
Setting item
Mask size
Edge level
136
ECM Search
Set value
[Factory default]
• 3 × 3
• [5 × 5]
Select the range of pixels which are used to extract the edge. With a larger
• 7 × 7 mask size, search is less affected by variation in pixels.
• 9 × 9
Change this when the edge is hard to see due to low contrast against the
0 to 255 background or when unnecessary background noise must be removed. The
[100] smaller the value, the easier it is to find edges. The larger the value, the less
noise will affect finding edges.
Description
FH/FZ5 Processing Item Function Reference Manual