Build OpenALPR and all its dependencies for ARM architecture using Docker.
If you just want to install OpenALPR on a Raspberry Pi, you can grab the .deb files which are available on the releases page. Download them and then do:
dpkg -i opencv_<version>_armhf.deb
dpkg -i leptonica_<version>_armhf.deb
dpkg -i openalpr_<version>_armhf.deb
dpkg -i tesseract_<version>_armhf.deb
sudo ldconfig
You'll also need to do:
sudo apt install libcurl4-openssl-dev liblog4cplus-dev
You can then run the test:
wget -q http://plates.openalpr.com/ea7the.jpg
alpr -c us ea7the.jpg
Either use a Raspberry Pi or fire up a Scaleway ARM cloud VM to build. You then can install the latest Docker version which is packaged by Hypriot:
wget https://downloads.hypriot.com/docker-hypriot_1.10.3-1_armhf.deb
sudo dpkg -i docker-hypriot_1.10.3-1_armhf.deb
systemctl start docker
Then, build them in order, which is:
- leptonica
- tesseract
- opencv
- openalpr
You'll have to modify each Dockerfile to point to your newly built intermediate .deb files.
cd leptonica / tesseract / etc.
make build
make deb
The test directory contains a Dockerfile that pulls in the final debs and allows you to manually verify the install worked. You can build and run it to get the OpenALPR results on the test plate:
make build
make run
- Put the debs into a proper repository like Package Cloud or Launchpad PPA (which doesn't support ARM at the moment).
This uses fpm to build deb files, see: