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