Appendices
E-8
MicroHAWK V320-F / V330-F / V420-F / V430-F Barcode Reader User Manual
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.
Straight Line
Straight Line Framed
E-3-6 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,
focus position
,symbol type,WOI framing,WOI
margin, line scan height,processing>
Default: 75 (pixels)
Options: 20 to 1280
E-3-7 Line Scan Height
Definition: This parameter is only used with the Straight Line modes. It sets the scan
height of the straight-line image, and it is expressed in number of pixels.
Serial Cmd: <K529,gain,exposure,
focus position
,symbol type,WOI framing,WOI
margin, line scan height,processing>
Default: 64 (pixels)
Options: 3 to 1280
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