Dlib deserialize форма формы лица с использованием istream

Question

Я полный noob, поскольку это касается dlib. Я знаю, как загрузить модель формы лица непосредственно из файла, и она работает.

dlib::shape_predictor face_shape_predictor_; 
dlib::deserialize("shape_predictor_68_face_landmarks.dat") >> face_shape_predictor_; 

Но как десериализовать из istream?

У меня есть следующий код:

dlib::shape_predictor face_shape_predictor_; 
std::stringstream face_data_stream; 

loadDataToStream(face_data_stream); 
dlib::deserialize(face_shape_predictor_, face_data_stream); 

И я не знаю, как заставить его работать.

Answer 1

На самом деле, добавив следующий код:

using namespace dlib; 

решена проблема компиляции.

Answer 2

Первый результат поиска в Google для "dlib deserailize" приводит к этому тексту;)

There are two global functions in the dlib namespace that provide serialization and 
deserialization support. Their signatures and specifications are as follows: 

    void serialize (
     const serializable_type& item, 
     std::ostream& out 
    ); 
    /!* 
     ensures 
      - writes the state of item to the output stream out 
      - if (serializable_type implements the enumerable interface) then 
       - item.at_start() == true 
     throws      
      - serialization_error 
       This exception is thrown if there is some problem which prevents 
       us from successfully writing item to the output stream. 
      - any other exception 
    *!/ 

    void deserialize (
     serializable_type& item, 
     std::istream& in 
    ); 
    /!* 
     ensures 
      - #item == a deserialized copy of the serializable_type that was 
       in the input stream in. 
      - Reads all the bytes associated with the serialized serializable_type 
       contained inside the input stream and no more. This means you 
       can serialize multiple objects to an output stream and then read 
       them all back in, one after another, using deserialize(). 
      - if (serializable_type implements the enumerable interface) then 
       - item.at_start() == true 
     throws      
      - serialization_error 
       This exception is thrown if there is some problem which prevents 
       us from successfully deserializing item from the input stream. 
       If this exception is thrown then item will have an initial value 
       for its type. 
      - any other exception 
    *!/ 

For convenience, you can also serialize to a file using this syntax: 
    serialize("your_file.dat") << some_object << another_object; 

That overwrites the contents of your_file.dat with the serialized data from some_object 
and another_object. Then to recall the objects from the file you can do: 
    deserialize("your_file.dat") >> some_object >> another_object;