Microscan Quadrus MINI Imager User Manual page 170

OCR Configuration
Orientation
Definition:
The Orientation property tells the OCR algorithm how to interpret rotationally
ambiguous results. It specifies how to orient decoded OCR data output
when the orientation cannot be determined from the physical OCR text
itself. OCR text does not provide true omnidirectionality. Given the following
OCR-B text, one would not know if the final output should be HOHOHOHO
(right orientation – left to right) or OHOHOHOH (left orientation – right to
left) since both H and A are rotationally symmetrical:
HOHOHOHO
Important: If the orientation cannot be determined from the OCR text (as is
the case with the string shown above), and the "orientation" parameter is
not set properly, then incorrect OCR results may be produced. If misreads
are not acceptable and there is no guarantee of the orientation of OCR text,
then setting the option to "none" will suppress answers where orientation
cannot be determined.
Serial Cmd: <K461,status,active template,orientation,single row,background,uncertain
characters,strip checksum,special character,passport checksum>
Default:
Right (left-to-right)
Options:
0 = Up (bottom-to-top)
1 = Down (top-to-bottom)
2 = Left (right-to-left)
3 = Right (left-to-right)
4 = None
Up (Bottom-to-Top)
Up – Text normally flows from the bottom to the top of the image.
Down (Top-to-Bottom)
Down – Text normally flows from the top to the bottom of the image.
Left (Right-to-Left)
Left – Text normally flows right to left in the image.
Right (Left-to-Right)
Right – Text normally flows left to right in the image.
None
None – No results issued for rotationally ambiguous text.
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Quadrus MINI Imager User's Manual