Leuze electronic VisionREADER 2300, Техническое описание

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Communicating with the Device
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The static strategy determines a fixed threshold value within the Data Matrix symbol. This
value is used to help distinguish between light and dark cells.
The dynamic strategy divides the symbol into many subsections, and calculates a threshold
value for each individual region.
➁
Symbol size The size of the Data Matrix symbol to be decoded is specified.
With the parameter
All codes all symbol sizes, square as well as
rectangular symbols, are automatically detected. With the param-
eter
Square codes , only quadratic symbols will be read. The
remaining selection options specify a single symbol size (e.g.
16 x 16).
Symbol orientation The software detects the code orientation automatically. The
setting
0 DEGREE determines that the code edges must be
parallel to the horizontal or vertical axis, respectively. This has
the advantage of a higher reading security. If the code orientation
is permitted to vary, the value
Any must be set.
Perspective correction Permits the use of a distortion correction. If Data Matrix codes are
read that are not in a perpendicular position with respect to the
device, a perspective-based distortion arises. This method
compensates the distortion computationally.
Noise reduction Used to eliminate the noise in the code in case of a non-homoge-
neous background.