Smart Gui - Algorithm Training Material_rev1.pdf - 第190页

Copyright © ViT rox All Rights Reserved . U-T ype Algorithm - 1D Barcode 190 d. Filter Unprintable Characters • Filter non printable characters are the used to filter the character that not in the ASCII table. • Those un…

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U-Type Algorithm - 1D Barcode
189
d. Prefix
Prefix is a feature to fill in the prefix character or alphabet in
front of the barcode.
e. Use As Board label
Use as board label is used to set the selected barcode as the
panel barcode.
If turn on use as board label, this barcode fail to detect will result
in Barcode0 in the result file.
If turn off board label, the panel barcode will also be show as
Barcode0
The result file can refer to c:\cpi\rep\cpixxx.rep.
Panel Barcode
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U-Type Algorithm - 1D Barcode
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d. Filter Unprintable Characters
Filter non printable characters are the used to filter the character
that not in the ASCII table.
Those unprintable characters will be filter out from the barcode,
and display the rest barcode in system.
e. Ignore Failures
Ignore Failures is used to ignore the barcode failure to show in
Inspection Summary list.
This feature enabled will always treat the barcode as pass even
the it is Barcode0.
f. Flipped
Tick to enable inspection for flipped
g. Acceptable Barcode Length
used to set the maximum and minimum barcode length that
accepted as pass barcode
The minimum barcode length able set to 1 and maximum
barcode length set to 128.
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U-Type Algorithm - 1D Barcode
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h. Image Plane
Select the one that having best contrast among the Polarity Marking and
background.
i. Invert
Used to invert the greyscale of the barcode from dark to bright and vise
versa.
j. Threshold Mode
Fixed - Used when Barcode and background having good contrast.
Dynamic - Used when Barcode and background having low contrast.
k. Threshold Count
Threshold count is used to inspect the barcode with a constant inspection
range which threshold count is 17 as default value.
When threshold count set to 17, the barcode will be decoded for 17 times
in a range of different grayscale level.
I. Median Filter
This setting is use to remove the white dots (Noise)