Microscan Quadrus EZ, User Manual, Page: 178 / 366

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Quadrus EZ Reader User’s Manual
Data Matrix
Print Growth
Axial Non-Uniformity
Definition:
The extent to which dark or light markings appropriately fill or exceed their
module boundaries. These values are determined by counting pixels in the
clock pattern of the binary digitized image, then comparing it to a nominal
value and Min. and Max. values. (ISO/IEC 15415) Print Growth grade is
defined in this way:
A (4.0) if -.050 < D < 0.50B (3.0) if -.070 < D < 0.70
C (2.0) if -.085 < D < 0.85D (1.0) if -.1.00 < D < 1.00
F (0.0) if D <-1.00 or D >1.00
If enabled, the print growth is appended to the symbol data according to the
ISO/IEC 15415 Symbol Quality Output Mode setting.
Serial Cmd: < K709, symbol contrast, print growth ,axial non-uniformity,unused ecc>
Default: Disabled
Options: 0 = Disabled 1 = Enabled
Definition:
Axial non-uniformity is a measure of how much the sampling point spacing
differs from one axis to another, namely AN = abs (XAVG - YAVG) /((XAVG
+YAVG)/2) where abs () yields the absolute value. If a symbology has more
than two major axes, then AN is computed for those two average spacings
which differ the most. (ANSI) Axial non-uniformity grade is defined in this
way:
A (4.0) if AN < .06 B (3.0) if AN < .08
C (2.0) if AN < .10 D (1.0) if AN < .12
F (0.0) if AN > .12
If enabled, the axial non-uniformity is appended to the symbol data accord-
ing to the ISO/IEC 15415 Symbol Quality Output Mode setting.
Serial Cmd: < K709, symbol contrast,print growth, axial non-uniformity ,unused ecc>
Default: Disabled
Options: 0 = Disabled 1 = Enabled