2D CodeFH/FZ5 Processing Item Function Reference Manual
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Inspecting and Measuring
Key Points for Test Measurement and Adjustment (2D Code)
The following contents are displayed in the Detail Result Pane.
Displayed items Description
Judge Judgement result
Index
Index matched as the result of comparison with the classification comparison character
strings
Detected character count Number of characters detected
Detected character strings Character strings detected
Cell recognition rate
*1
A value used to check the error correction rate.
The fewer the words whose errors corrected
, the better the recognition rate.
Contrast
*1
Evaluate the sharpness of an image. If an image is defocused, code cannot be identified.
The displayed value will be smaller as it becomes defocused.
Focus
*1
Evaluate the number of false cell detections in the finder pattern, timing pattern and data
region. The displayed value is smaller when there are many false cell detections and
reading is unstable.
Overall quality
*2
An overall quality grade for the read code.
This is given the lowest weight of the various quality grades.
Decode
*2
A quality decode which shows whether the decode is successful or not.
Contrast
*2
A quality grade which shows the contrast.
The grade will be high when the difference of highest and lowest brightness are large in
code region.
Mo
dulation
*2
A quality grade which shows the uniformity of cells brightness.
Fixed pattern damage
*2
A quality grade which shows the damage level of the followings:
• Finder pattern
• Timing pattern
• Quiet zone
Axis non-uniformity
*2
A quality grade which shows the ratio of code width and height.
A cell figure which is close-to-square has high grade.
Error correction during unused
time
*2
A quality grade which shows the amount of vertical displacement from the ideal position.
Print Scale
*2
A quality grade that shows the percentage of error corrected items.
Fewer error-corrected words results in a higher grade.
Print expansion/contraction X
*2
A quality grade which shows the uniformity of black cell size and white cell size in the X
direction results in a higher grade.
Print expansion/contraction Y
*2
A quality grade which shows the uniformity of black cell size and white cell size in the Y
direction results in a higher grade.
Scan
*2
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Overall quality
*3
An overall quality grade for the read code.
This is given the lowest weight of the various quality grades.
Decode
*3
A quality grade which shows whether the start pattern, stop pattern, or specified line were
successfully decoded, or not.
RAP contrast
*3
A quality grade which shows whether the start pattern, stop pattern, or specified line were
successfully decoded, or not.
The grade will be high when the difference of highest and lowest brightness are large in
p
a
ttern region.
RAP reflectance
*3
A quality grade which shows the contrast of the start pattern, stop pattern, or specified line.
The grade will be high when the difference of highest and lowest brightness are large in
pa
ttern region.