Omron V440-F, User Manual

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E-7
Appendices
V440-F C-Mount Code Reader User Manual
E-3 Cal
ibratio
n O
p
tion
s
E
E-3
-5 Window of Inte
rest (WOI) Mar
gin
If the calibration process is successful, the Window of Interest rows will be modified to horizontally
frame the symbol, plus an additional margin area around the symbol, determined by the WOI Margin
parameter.
If the calibration process is successful, the Window of Interest columns will be modified to vertically
frame the symbol, plus an additional margin area around the symbol, determined by the WOI Margin
parameter.
This feature is intended for use with linear symbologies. If the calibration process is successful, the orientation
of the symbol is determined and the Window of Interest is modified according to the symbol orientation.
The scan line orientation is determined to be vertical if the symbol tilt is between 225° and 315°, or
between 45° and 135°. Otherwise, the scan line will be horizontal.
If the symbol is vertical, the image column size will be set by the scan height parameter, and will be
configured for full row resolution. If the symbol is horizontal, the image row size will be set by the scan
height parameter, and will be configured for full column resolution. The scan line will be centered in the
middle of the symbol. If the symbol is tilted such that the scan line will not pass completely through the
symbol, the scan width will be adjusted to include the entire symbol. Refer to the diagram below:
This parameter is the same as “Straight Line”, except that the Window of Interest will also frame the
scan line on the symbol length as well. The scan line includes the symbol plus an additional margin
area determined by the WOI Margin parameter.
Row
Column
Straight Line
Straight Line Framed
E-3-5 Window of Interest (WOI) Margin
Definition:
Sets the margin size that is applied to the calibrated symbol. This parameter is
expressed in number of pixels. If the margin causes the image to exceed the maximum
image size, it will be reduced accordingly.
Serial Cmd:
<
K529, gain,exposure,symbol type,WOI framing, WOI margin ,line scan height,processing,
calibration manager
>
Default: 75 (pixels)
Options:
20 to 1280