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Today we will show you how easy it is to install PDlib. You need this, for example, for face recognition in NextCloud, as in this article: Face Recognition in NextCloud • Schächner (xn–schchner-2za.de).
If you want us to help you with the installation, please write to us!
You can also use it to fix the following error: App “Face Recognition” cannot be installed because the following dependencies are not fulfilled: The library pdlib is not available.
But let’s start right away:
First we edit a file:
sudo nano /etc/apt/sources.list.d/20-pdlib.list
There we need to add the package source at the end:
deb [signed-by=/usr/share/keyrings/delellis-archive-keyring.gpg arch=amd64] https://repo.delellis.com.ar jammy jammy
After that we download the key with this command:
wget -O- https://repo.delellis.com.ar/repo.gpg.key | sudo gpg --dearmor -o /usr/share/keyrings/delellis-archive-keyring.gpg
That was the hardest part.
Now we still lead
sudo apt update
out and then we can take the package with you
sudo apt install php8.1-pdlib
Now we install PDlib “again” (specifically for the Face Recognition App):
For this we need some dependencies again
sudo apt-get install libx11-dev
sudo apt-get install libopenblas-dev liblapack-dev
sudo apt install cmake
sudo apt install php-dev
Then install the shared library (Dlib):
sudo git clone https://github.com/davisking/dlib.git
sudo mkdir build
sudo cmake -DBUILD_SHARED_LIBS=ON ..
sudo make install
Now for the actual installation:
sudo git clone https://github.com/goodspb/pdlib.git
sudo ./configure --enable-debug
sudo make install
So. We’re done with the installation.
Now you only have to go into the php.ini file under the point ; dynamic extensions ; add the following content:
sudo nano /etc/php/8.2/cli/php.ini
We’re still testing that
sudo apt-get install php-bz2
sudo make test
Good luck and have fun!
Thanks for reading, Schächner