Microscan MS-4X User Manual Page 283

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MS-4X Imager User Manual
11-13
Configuration Database
Region of Interest (ROI)
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 configu
ration.
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 camera 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.
Full Image Size (640 x 480)
IP ROI
DB 3
IP ROI
IP ROI
DB 2
DB 1
column size
row
size
row
pointer
column
pointer
Camera WOI
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