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(6) Pre-processing
Pre-processing includes various image manipulation processes that create more readable
images by removing noise and distortion in the image data. And, by extracting or emphasizing
certain image features, it is easier to evaluate or identify target objects by converting the images
into standard patterns.
In the IV-S20, you can select from "smoothing," "edge emphasis," and "edge extraction (whole,
horizontal, vertical)" pre-processing techniques
Item
· Display smooth images decreasing the noise.
· Use to eliminated surface flaws and unevenness in the reflected light
Smoothing
caused by protrusions or dents.
· Display images with sharp boundaries between brighter and darker areas.
Edge
· Used to stabilize and create a binary outline of obscure objects.
emphasis
· Display images after extracting and clarifying the boundaries between the
brighter and darker areas.
Edge
· Used to measure objects with low contrast.
extraction
· Horizontal edge extraction: Display only the with horizontal boundaries o
an object.
· Vertical edge extraction: Display only the vertical boundaries of an object.
[Example of an image]
- OFF
- Edge emphasis
- Edge extraction (horizontal)
[Measurement programs which are affected by these settings]
Distance and angle measurement (center of gravity: page 9-62)
Area measurement by binary conversion (page 9-85)
Counting quantities by binary conversion (page 9-93)
Identifying object by binary conversion (page 9-101)
Contents
- Smoothing
- Edge extraction (All)
- Edge extraction (vertical)
9-9
Shared settings
9
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