.. _silhouettes:

Silhouette Detection
======================================

To collect real-time :ref:`statistics <counters>` on human silhouettes, you first have to enable silhouette detection.

.. rubric:: In this section:

.. contents::
   :local:


Enable Silhouette Detection
---------------------------------

To enable detection of human silhouettes, do the following:

#. Open the ``/etc/findface-extraction-api`` configuration file and add a new detector ``edie`` (``edie_rc2.cpu.fnk``/``edie_rc2.gpu.fnk``) with relevant settings, as shown in the example below.   

   .. code::
   
      sudo vi /etc/findface-extraction-api.ini
  
      detectors:
        max_batch_size: 1
        instances: 1
        models:
          cheetah:
            model: facedet/cheetah.cpu.fnk
            options:
              min_object_size: 32
              resolutions:
              - 256x256
              - 384x384
              - 512x512
              - 768x768
              - 1024x1024
              - 1536x1536
              - 2048x2048
          edie:
            model: pedet/edie_rc2.cpu.fnk
            options:
              min_object_size: 16
              resolutions:
              - 1280x720
              - 1920x1080

   .. note::
      The values of the ``edie`` options in the example are considered optimal. You can adjust them, subject to your cameras' observation scenes. Contact our experts by support@ntechlab.com if you have any questions.

#. Restart ``findface-extraction-api``.

.. code::

   sudo systemctl restart findface-extraction-api


.. seealso:

   :ref:`counters`