复制如下命令：
yum install cmake python-devel numpy gcc gcc-c++ gtk2-devel libdc1394-devel libv4l-devel ffmpeg-devel gstreamer-plugins-base-devel libpng-devel libjpeg-turbo-devel jasper-devel openexr-devel libtiff-devel libwebp-devel opencv opencv-python opencv-devel
然后：
pip install dlib
原文：https://www.cnblogs.com/tangpg/p/9725134.html