Microscan Quadrus EZ Manual de usuario descargar pdf (Pagina 178)

6-6 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

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Microscan Quadrus EZ Manual de usuario Pagina 178