Installing dlib and face_recognition.md

Installing dlib and face_recognition

(assuming that conda and/or miniconda are already installed)

1. Create a conda environment with a few packages initialized.

   conda create -n faces python=3.6 cudatoolkit cudnn cmake numpy ipython

2. Activate the environment.

   conda activate faces

3. Download and build dlib from source, following https://www.pyimagesearch.com/2018/06/18/face-recognition-with-opencv-python-and-deep-learning/. Notice that the last python setup.py step is changed...

   $ git clone https://github.com/davisking/dlib.git
   $ cd dlib
   $ mkdir build
   $ cd build
   $ cmake .. -DDLIB_USE_CUDA=1 -DUSE_AVX_INSTRUCTIONS=1
   $ cmake --build .
   $ cd ..
   $ python setup.py install --set DLIB_USE_CUDA=1

4. Install face_recognition python library

   pip install face_recognition

5. Test it out using ipython

   (faces) [triznam@NMNH-30914 dlib]$ ipython
   Python 3.6.8 |Anaconda, Inc.| (default, Dec 30 2018, 01:22:34)
   Type 'copyright', 'credits' or 'license' for more information
   IPython 7.3.0 -- An enhanced Interactive Python. Type '?' for help.
   
   In [1]: import dlib
   
   In [2]: dlib.DLIB_USE_CUDA
   Out[2]: True
   
   In [3]: print(dlib.cuda.get_num_devices())
   1