Vehicle plate number detection
A smart parking system ensures all activities take place automatically. Rather than reading a vehicle plate number manually, we can make it read a vehicle plate number using a program through a camera. We can use the OpenALPR library for reading vehicle plate numbers.
OpenALPR is an open source automatic license plate recognition library written in C++ with bindings in C#, Java, Node.js, Go, and Python. You can visit the official website at https://github.com/openalpr/openalpr.
We will install OpenALPR and test it with vehicle plate numbers in the next section.
Installing OpenALPR
In this section, we will deploy OpenALPR on the Raspberry Pi. Since OpenALPR needs more space on disk, make sure your Raspberry has space. You may need to expand your storage size.
Before we install OpenALPR, we need to install some prerequisite libraries to ensure correct installation. Make sure your Raspberry Pi is connected to the internet. You can type these commands to install all...