WWW.NNC.IR
Measurement Mechanism
840
Vision System FH/FZ5 Series
User’s Manual (Z340)
Edge Level
Indicates the edge color change level (degree of color difference). This level is adjusted if edges cannot be
accurately detected.
For case of measurement using relative position (%) with regards to width of color difference
The edges are detected in the following manner.
1 Calculate the overall distribution of color difference in the measurement region.
2 Min. color difference value: 0%; Max. color difference value: 100%
3 Locations in which there is an edge level color difference are detected as edges.
When performing measurement using color difference value
Edge level is set using color difference absolute value.
The value 0 to 100 for the edge level indicates the edge intensity. It is not related to color difference in the original images.
Edge Position Edge Pitch
Measurement
region
100%
50%
0%
Max. color difference
Edge level
Min. color difference
Measurement area
Edge level
Edge level
100%
20%
100%
20%
0%
1
Example)
Measurement region
Edge level (absolute value)
Noise
50
0