7.2.9 Direct Part Marking Applications
For Data Matrix family codes the Decoding Complexity parameter is available when
Processing Mode is set to Standard and selects the decoding algorithm according to the
printing/marking technique used to create the symbol and on the overall printing/marking
quality.
The possible selections progress from Low to Very High where Low can improve decoding
time for good print/mark quality and/or relatively normal size codes. This is the default
setting. Very High can improve the decode rate for low print/mark quality and/or small size
codes. This algorithm is much more aggressive but in general it may have longer decoding
times than the lower complexity algorithms. To minimize decoding time it is better to
select the lowest value that still guarantees good decoding.
Figure 75 – Problematic Direct Part Marking Examples
For QR code the Decoding Method parameter allows the Dot Peen Decoding algorithm to
be selected which improves the decode rate for low quality Direct Part Mark codes and in
general for Direct Part Mark codes with dot peening type module shapes.
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