Vcpkg and Dlib Face Recognition

安装 vcpkg

安装 Vcpkg 源码的 README 来：

git clone https://github.com/Microsoft/vcpkg.git
cd vcpkg
./bootstrap-vcpkg.sh

安装 Dlib

./vcpkg install dlib

使用 Dlib 做人脸识别

1. 编译实例代码

   mkdir test
   cd test
   
   ...下载 http://dlib.net/dnn_face_recognition_ex.cpp.html *内容*
   ... 保存为 dnn_face_recognition_ex.cpp
   
   cat > CMakeLists.txt <<EOF
   cmake_minimum_required(VERSION 3.0)
   project(test)
   
   find_package(dlib CONFIG REQUIRED)
   find_package(jpeg REQUIRED)
   
   add_executable(dnn_face_recognition_ex dnn_face_recognition_ex.cpp)
   target_link_libraries(dnn_face_recognition_ex PRIVATE dlib::dlib JPEG::JPEG)
   EOF
   
   mkdir build
   cd build
   cmake .. -DCMAKE_TOOLCHAIN_FILE=$VCPKG_ROOT/scripts/buildsystems/vcpkg.cmake
   make
   

2. 下载模型文件

cd build curl -C - -O http://dlib.net/files/shape_predictor_5_face_landmarks.dat.bz2 curl -C - -O http://dlib.net/files/dlib_face_recognition_resnet_model_v1.dat.bz2 gunzip shape_predictor_5_face_landmarks.dat.bz2 gunzip dlib_face_recognition_resnet_model_v1.dat.bz2

3. 识别照片

```bash
./dnn_face_recognition_ex  photo.jpg