openalpr 1.1.0

OpenALPR Python Bindings

Installation

1. Make sure your computer has the commercial engine installed. This can be achieved by installing either the OpenALPR Agent or the Commercial SDK. This ensures that the C code bound to this Python package is available on your system.

2. IMPORTANT: you cannot use this package without a product license. If you need an evaluation license, please request one here.

3. Install this Python binding: pip install openalpr

Example

Download and image of a car with the license plate visible, save to your computer, and run the following code:

import json
from openalpr import Alpr

alpr = Alpr("us", "/path/to/openalpr.conf", "/path/to/runtime_data")
if not alpr.is_loaded():
    print("Error loading OpenALPR")
    sys.exit(1)
results = alpr.recognize_file("/path/to/image.jpg")
print(json.dumps(results, indent=4))
alpr.unload()

On Linux systems, the default paths for files required to instantiate the Alpr class are

• /etc/openalpr/openalpr.conf
• /usr/share/openalpr/runtime_data

And on Windows systems

• C:\OpenALPR\Agent\etc\openalpr\openalpr.conf
• C:\OpenALPR\Agent\usr\share\openalpr\runtime_data