face_recognition人脸识别Python安装

在直接pip安装face_recognition时，安装dlib时会报错，编译安装时也报了奇怪的错..最后发现是依赖关系没解决。

下面直接贴出安装步骤：

step 1. 安装相关依赖

# for macOS

brew install cmakebrew install boostbrew install boost-python --with-python3

# for Ubuntu

sudo apt-get install build-essential cmake

sudo apt-get install libgtk-3-dev

sudo apt-get install libboost-all-dev

step 2. 安装 face_recognition

pip install -i https://pypi,douban.com/simple/ face_recognition