This tutorial was written by PJ Evans and first appeared in The MagPi 79. Let’s demonstrate what’s possible by building a system to detect and alert when a car comes onto the driveway. Now, even the Raspberry Pi has the ability to read number-plates with high accuracy using the Pi Camera Module and open-source software. It wasn’t long ago that ANPR technology was extremely expensive to purchase and implement. Once the exclusive realm of the police, the technology used to accurately read car number-plates can now be found in supermarket and airport car parks. Automatic number-plate recognition ( ANPR) is becoming more and more commonplace.
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