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Underexposure
4.2.2
Disturbing contours caused by shine
Shiny areas on the surfaces of the part cause disturbing edges that must be avoided for a
representative model. In the example shown below, you can see clearly that even the
automatic shutter control can cause bad edges in this case. These edges make recognition
of the parts unreliable since they are often not reproducible.
Unwanted edge lines
Vision Sensor SIMATIC VS120
Operating Instructions, Edition 02/2006, A5E00757507-01
4.2 Shutter Speed and Brightness
Shutter speed: 800
Brightness: 357
or
Shutter speed: 3800
Brightness: 93
In the trained model shown here, you can see
unwanted edge lines that reduce quality during
the search and recognition and therefore ought
to be avoided.
Image processing
4-3
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