Typical printed codes and cameras vary from one code or camera to the next and over time so a method of adjusting a camera to recognize {HEAD ~ each feature} at {TAIL ~ the moment} of reading the symbol is provided in accordance with the present invention 
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Typical printed codes and cameras vary from one code or camera to the next and over time so a method of adjusting a camera to recognize { HEAD ~ each feature } at { TAIL ~ the moment } of reading the symbol is provided in accordance with the present invention
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH