Omron V440-F, Руководство пользователя

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Appendices
L-12 V440-F C-Mount Code Reader User Manual
When
Image Dimensions
is set to Region of Interest, the database image dimension parameters are
IP and decode settings
, and they determine the region or area of the captured image to be processed.
ROI
coordinate data is based on the full image size. The
WOI
of the captured image will be configured
to cover all the ROI settings in the current, active database entry. In the following example, there are three
active database settings, each with a different ROI configuration. Their coordinates are based at point 0,0
of the full scale image. In this example,
DB1
and
DB3
determine the size of the captured image WOI,
while DB2 has no impact. The image WOI is not configurable. It is automatically set up by the database
according to the ROI settings.
Note:
Since the
ROI
parameters are not a reader setting, a change in
ROI
parameters from one index
to another does
not
indicate an image capture event.
This feature is intended to be used in conjunction with
Image Process Looping
, to allow different
regions of a captured image to be processed using different IP and decode settings.
Also, if this feature is used in conjunction with
Output Filtering
, multiple decoded symbols in a captured
image frame can be output according to their location in the field of view.
Region of Interest (ROI)
Full Image Size (QSXGA Reader: 2464 x 2048)
IP ROI
DB 3
IP ROI
IP ROI
DB 2
DB 1
column size
row
size
row
pointer
column
pointer
Reader WOI