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• Contrast-Reverse Symbols function
This is function that scan special symbols which is printed out white color in black color
background (Reverse printed Symbols).
When you specified Contrast-Reverse Symbols function, such kind of special symbol will be
available to scan.
Setting Description Remarks
Normal Available to scan normal symbol (printed black color in white
color background.)
Default
Contrast-Reverse Available to scan Contrast-Reverse symbol (printed white color
in black color background.)
Both normal and
Contrast-Reverse
Available to scan both normal and Contrast-Reverse symbol.
But scanning performance will be decreased.
This is function that scan special symbols which is printed out white color in black color
background (Reverse printed Symbols).
Please take care when you set Contrast-Reverse mode, normal symbol will not be scanned.
About QR code, DataMatrix code and Aztec code is not related with this function setting.
(These type of symbol are available to scan at both mode.)
The functions of the Imager Library relevant to the “Contrast-Reverse Symbols function” are as
follows.
IMGSetDecodeReverse
: Sets up Contrast-Reverse Symbols function condition.
IMGGetDecodeReverse
: Retrieves Contrast-Reverse Symbols function condition.
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