OpenALPR on Raspbian buster

raspbian_openalpr.sh

## Prep SD card
# wpa_supplicant.conf
touch /boot/ssh
echo "enable_uart=1" >> /boot/config.txt

## Boot, ssh

uname -a
# Linux gatelpr 5.10.63+ #1496 Wed Dec 1 15:57:05 GMT 2021 armv6l GNU/Linux

lsb_release -a
# No LSB modules are available.
# Distributor ID: Raspbian
# Description:    Raspbian GNU/Linux 10 (buster)
# Release:        10
# Codename:       buster

sudo raspi-config
## Interface Options > Camera: Enable

## Test camera
raspistill -o ~/image.jpg

sudo apt-get update && sudo apt-get install -y openalpr openalpr-daemon openalpr-utils libopenalpr-dev

## For some reason alpr returns error
# Error opening data file /usr/share/openalpr/runtime_data/ocr/lau.traineddata
# Please make sure the TESSDATA_PREFIX environment variable is set to your "tessdata" directory.
## Doesn't seem to respect
export TESSDATA_PREFIX="/usr/share/openalpr/runtime_data/ocr/tessdata"
## So soft link traineddata to where it expects it:
sudo cp --symbolic-link /usr/share/openalpr/runtime_data/ocr/tessdata/*.traineddata /usr/share/openalpr/runtime_data/ocr

## ls /usr/share/openalpr/runtime_data/ocr/ -l
# total 32
# lrwxrwxrwx 1 root root   61 Jan  6 03:57 lau.traineddata -> /usr/share/openalpr/runtime_data/ocr/tessdata/lau.traineddata
# lrwxrwxrwx 1 root root   61 Jan  6 03:57 leu.traineddata -> /usr/share/openalpr/runtime_data/ocr/tessdata/leu.traineddata
# lrwxrwxrwx 1 root root   61 Jan  6 03:57 lgb.traineddata -> /usr/share/openalpr/runtime_data/ocr/tessdata/lgb.traineddata
# lrwxrwxrwx 1 root root   62 Jan  6 03:57 lkr2.traineddata -> /usr/share/openalpr/runtime_data/ocr/tessdata/lkr2.traineddata
# lrwxrwxrwx 1 root root   61 Jan  6 03:57 lkr.traineddata -> /usr/share/openalpr/runtime_data/ocr/tessdata/lkr.traineddata
# lrwxrwxrwx 1 root root   61 Jan  6 03:57 lsg.traineddata -> /usr/share/openalpr/runtime_data/ocr/tessdata/lsg.traineddata
# lrwxrwxrwx 1 root root   61 Jan  6 03:57 lus.traineddata -> /usr/share/openalpr/runtime_data/ocr/tessdata/lus.traineddata
# drwxr-xr-x 2 root root 4096 Jan  6 03:50 tessdata

alpr -c auwide ~/plates.jpg

man alpr