To use Face SDK, you have to install the following dependencies:
sense4.dll. This library is located in the bin folder in Face SDK and should be located next to
facerec.dllif you change the default location
- Windows 64-bit:
tensorflow.dll. This library is located in the bin folder of the Face SDK distribution package. It must be located in the directory from which the application is launched or you must add the path to the directory with this library to the
- Windows 64-bit: Microsoft Visual C++ Redistributable for Visual Studio 2019
- Linux 64-bit:
libtensorflow.so.2. This library is located in the lib folder in Face SDK
libfacerec library is loaded dynamically in runtime mode when the static method
pbio::FacerecService::createService is called. Therefore, do not link your program with
libfacerec.so (Linux) or
facerec.dll (Windows). You only need to add the include directory to include directories, or, for Linux projects, to link the
libdl library with the
Warning: You can call
pbio::FacerecService::createService only once, otherwise, you may encounter a crash.
All libfacerec declarations are divided in two headers:
facerec/import.h– should be included only once (for example, in
facerec/libfacerec.h– should be included in each file that uses library
The libfacerec library does not have any actual third-party dependencies*, since all used third-party libraries (see Open Source Licenses) are linked statically. Therefore, any version of these libraries should work for examples, in which OpenCV or boost is used.
* – except for the linux x86_64 and windows_x86_64 distribution packages. At the moment, they have a dependency on
You can get the current library version by calling the
get_version method from the created
FacerecService object. This will return a string in the format of
x is the major version,
yy is the minor version, and
zz is the patch version.
In C++, the version can be additionally obtained from the preprocessor constants:
LIBFACEREC_VERSION– string representation, similar to
LIBFACEREC_VERSION_HEX– 3-byte HEX representation that is useful in numeric comparisons, e.g.
facerec.jar in a project, specify the path to this file in
facerec.jar Java library is a wrapper for the C++ library, so
libfacerec.so for Linux and Android or
facerec.dll for Windows are required in runtime. Path to the directory containing
facerec_jni.dll should be specified in
To use facerec in a project, add reference to
FacerecCSharpWrapper.dll in a project. Add
facerec.so (for Linux) or
facerec.dll (for Windows) and
FacerecCSharpWrapper.dll to the folder with executable file.
To use the libfacerec library, call the
FacerecService.createService method, which dynamically loads the library.
FacerecService.createService method has an overloading signature and can be called:
- by passing the path to the directory with the license (from which the
3divi_face_sdk.liclicense is loaded)
- by passing the license in the form of a special structure:
Warning: You can call
FacerecService.createService only once, otherwise, you may encounter a crash.