Property
Type
1D Standards
2D Standards
Description
referenceDecode
Metric ISO/IEC 15416
Reference Decode is
an indication of
whether the standard
2D Data Matrix
algorithm was able to
locate and decode
this particular mark.
This metric generates
a grade of either A or
F.
decodability
Metric ISO/IEC 15416
Decodability is the
measure of bar code
printing accuracy in
relation to the
symbology-specific
reference decode
algorithm.
Decodability indicates
the scale of error in
the width of the most
deviant element in the
symbol. The smaller
the deviation, the
higher the grade.
contrastUniformity
Metric ISO/IEC 15416
ISO/IEC 15415
(DataMatrix, QR)
Contrast Uniformity is
an optional parameter
that is used for
measuring localized
contrast variations. It
does not affect the
overall grade.
reflectanceMargin
Metric ISO/IEC 15416
ISO/IEC 15415
(DataMatrix, QR)
Reflectance Margin
measures how each
module is
distinguishable as
light or dark
compared to the
global threshold.
Factors (like print
growth, certain optical
characteristics of the
substrate, uneven
printing, encodation
errors) can reduce or
eliminate the margin
for error between the
reflectance of a
module and the
global threshold. A
low Reflectance
Margin can increase
the probability of a
module being
incorrectly identified
as dark or light.
Metric
Describes the quality of a measured parameter.
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