Dlib中的人脸landmark检测的模型压缩
具体介绍见博客：http://www.miaoerduo.com/c/dlib人脸关键点检测的模型分析与压缩.html
使用前，需要修改dlib的源码： DLIB_PATH/include/dlib/image_processing/image_processing/shape_predictor.h
修改 shape_predictor 类的成员变量的属性为public。
git clone https://github.com/miaoerduo/dlib-face-landmark-compression.git
cd dlib-face-landmark-compression
g++ main.cpp -o main.bin -I ./ -I DLIB_PATH/include -L DLIB_PATH/lib -ldlib -std=c++11
./main.bin src_dlib_shape_predictor_model dest_model