Panasonic PV500 User Manual page 88

Edge Extract X
In the X direction, extracts the area
of which grayscale value changes.
Edge Extract Y
In the Y direction, extracts the area
of which grayscale value has been
changed.
Sharpen
Enhances the area of which
grayscale value changes. The
image becomes sharp. The noises
may also be enhanced.
Index 5
Main application: Flaw detection
Tophat
This is a filter to extract a point with a
small area or a thin line.
Dynamic
Divides the image into specified
areas, and performs Binary process
by comparing the brightness in the
area. It is helpful to binarize the image
the brightness of which is uneven.
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Frequency Extraction
It can be executed with the
combination of the process for
smoothing the fine change in shading
and the process for equalizing the
moderate unevenness of brightness.
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Setting Tophat
1. Select the color of foreign objects you want to extract in
"Segment Color".
Black: Extracts the foreign objects darker than the background.
White: Extracts the foreign objects lighter than the background.
2. Specify the size (thickness) of the foreign
objects you want to extract in "Size X/Y".
The background information larger than the
size specified here (such as patterns. The
black horizontal lines in the example on the
right) is removed.
Select (check) "Set size X/Y individually." to
set X and Y directions to different sizes. Now
you can set Size Y.
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