.. _deploy-models:

Neural Network Models Installation
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To detect and identify faces and face features (gender, age, emotions, beard, glasses, face mask, and others), ``findface-extraction-api`` uses neural networks.

If you have to manually initiate the models installation, use the console installer as follows:

#. Execute the prepared ``findface-security-and-server-4.4.run`` file.

   .. code::

      sudo ./findface-security-and-server-4.4.run

#. Select the installation type: ``Fully customized installation``.
#. Select a FindFace Security component to install: ``findface-data``. To do so, first deselect all the listed components by entering ``-*`` in the command line, then select the required component by entering its sequence number (keyword): ``1``. Enter done to save your selection and proceed to another step.
#. In the same manner, select models to install. After that, the installation process will automatically begin.
 
.. note::
   You can find installed face recognition models at ``/usr/share/findface-data/models/face/``, face features recognition models at ``/usr/share/findface-data/models/faceattr/``.

   .. code::

      ls /usr/share/findface-data/models/face/
      ifruit_160.cpu.fnk  ifruit_160.gpu.fnk  ifruit_320.cpu.fnk  ifruit_320.gpu.fnk

      ls /usr/share/findface-data/models/faceattr/
      age.v1.cpu.fnk  beard.v0.cpu.fnk  emotions.v1.cpu.fnk  gender.v2.cpu.fnk  glasses3.v0.cpu.fnk  liveness.alleyn.cpu.fnk  liveness.v3.cpu.fnk  medmask3.v2.cpu.fnk  quality.v1.cpu.fnk
      age.v1.gpu.fnk  beard.v0.gpu.fnk  emotions.v1.gpu.fnk  gender.v2.gpu.fnk  glasses3.v0.gpu.fnk  liveness.alleyn.gpu.fnk  liveness.v3.gpu.fnk  medmask3.v2.gpu.fnk  quality.v1.gpu.fnk