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41 
42 #ifndef OPENCV_DNN_LAYER_HPP
43 #define OPENCV_DNN_LAYER_HPP
44 #include <opencv2/dnn.hpp>
45 
46 namespace cv {
47 namespace dnn {
48 CV__DNN_EXPERIMENTAL_NS_BEGIN
49 //! @addtogroup dnn
50 //! @{
51 //!
52 //! @defgroup dnnLayerFactory Utilities for New Layers Registration
53 //! @{
54 
55 /** @brief %Layer factory allows to create instances of registered layers. */
56 class CV_EXPORTS LayerFactory
57 {
58 public:
59 
60     //! Each Layer class must provide this function to the factory
61     typedef Ptr<Layer>(*Constructor)(LayerParams &params);
62 
63     //! Registers the layer class with typename @p type and specified @p constructor. Thread-safe.
64     static void registerLayer(const String &type, Constructor constructor);
65 
66     //! Unregisters registered layer with specified type name. Thread-safe.
67     static void unregisterLayer(const String &type);
68 
69     /** @brief Creates instance of registered layer.
70      *  @param type type name of creating layer.
71      *  @param params parameters which will be used for layer initialization.
72      *  @note Thread-safe.
73      */
74     static Ptr<Layer> createLayerInstance(const String &type, LayerParams& params);
75 
76 private:
77     LayerFactory();
78 };
79 
80 //! @}
81 //! @}
82 CV__DNN_EXPERIMENTAL_NS_END
83 }
84 }
85 #endif
86