Reflect In Total Judgement; Changing Edge Detection Conditions (Sensors With Monochrome Cameras Only); Unstable Edge Position Results - Omron FQ2-S4 User Manual

Reflect in Total Judgement

You can specify whether to reflect the judgement results of an inspection item in the overall judgement. (The
default is to reflect them.)
−
[Inspect] [Inspection]
parameter]

Changing Edge Detection Conditions (Sensors with Monochrome Cameras Only)

You can change the following measurement conditions for Sensors with Monochrome Cameras.
[Inspect] − [Inspection] − [Edge Position] − [Modify] − [Details] Tab Page − [Meas. Parameter]
Item
Density change
Measurement methods

Unstable Edge Position Results

There Is an Edge But It Cannot Be Detected
−
[Inspect] [Inspection]
[Edge Level]
Parameter
Edge level
Note
Edge Level
An edge is detected in the following way.
1. The color change distribution of the entire measurement region is determined.
2. The minimum color change is 0%. The maximum color change is 100%.
3. The location where the color change intersects with the edge level is detected as the edge.
Measurement
region
164
Inspecting with the Edge Position Inspection Item
− −
[Add item.] [Edge Position]
Parameter Description
Light to Dark Detects as an edge any position within the specified region that changes from
white to black.
Dark to Light Detects as an edge any position within the specified region that changes from
black to white.
Projection A projection is formed based on the gray level, and any position of intersection
between the gray level value and the threshold (edge level) is detected as an
edge.
This detection method is used when you must process an image with exces-
sive noise or when the edges are blurry.
Differentiation A differentiated waveform is created that represents the amount of change in
gray level between neighboring pixels. The maximum value of the differenti-
ated waveform that exceeds the threshold (edge level) is detected as an edge.
This detection method is used for low-contrast images.
−
[Edge Position]
Setting Description
Range: 0 to 100 Set the color change level to detect as an edge.
Default: 50 The edge point is found based on a threshold that is set for a color change.
Important
If you change the edge level, perform teaching again.
100%
50%
0%
−
[Details] Tab Page
− −
[Modify] [Details] Tab Page
Maximum color change
Edge level
Minimum color change
−
[Output
− −
[Meas. Parameter]
FQ2-S4 User's Manual