I would imagine that the hardest part of automated plate counting
is the setting up. It will take time for you to fine tune the
system to give what you regard as accurate results. For this
reason you will have to check the results for the first two or
three months with an ongoing check process once every one or two
months. Don't despair, automated plate counting must be the best
way to improve your efficiency however, always remember that
computers only do what they are told, 'garbage in, garbage out'
is a very true statement so take your time when you are setting
up the system and get a decent image acquisition system, as money
saved on this will be wasted further down the line. It will be
worth it in the end.