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00011 #ifndef _LBP_PYR_DOTFEATURES__H__
00012 #define _LBP_PYR_DOTFEATURES__H__
00013
00014 #include <shogun/lib/common.h>
00015 #include <shogun/features/DotFeatures.h>
00016 #include <shogun/features/DenseFeatures.h>
00017
00018 namespace shogun
00019 {
00025 class CLBPPyrDotFeatures : public CDotFeatures
00026 {
00027 public:
00029 CLBPPyrDotFeatures();
00030
00036 CLBPPyrDotFeatures(CDenseFeatures<uint32_t>* images, uint16_t num_pyramids);
00037
00038 virtual ~CLBPPyrDotFeatures();
00039
00046 CLBPPyrDotFeatures(const CLBPPyrDotFeatures & orig);
00047
00052 virtual int32_t get_dim_feature_space() const;
00053
00059 virtual int32_t get_nnz_features_for_vector(int32_t num);
00060
00065 virtual EFeatureType get_feature_type() const;
00066
00071 virtual EFeatureClass get_feature_class() const;
00072
00077 virtual int32_t get_num_vectors() const;
00078
00086 virtual float64_t dot(int32_t vec_idx1, CDotFeatures* df, int32_t vec_idx2);
00087
00092 virtual int32_t get_size() const;
00093
00103 virtual void* get_feature_iterator(int32_t vector_index);
00104
00115 virtual bool get_next_feature(int32_t& index, float64_t& value, void* iterator);
00116
00122 virtual void free_feature_iterator(void* iterator);
00123
00128 CFeatures* duplicate() const;
00129
00134 virtual const char* get_name() const { return "LBPPyrDotFeatures"; }
00135
00143 virtual float64_t dense_dot(int32_t vec_idx1, const float64_t* vec2, int32_t vec2_len);
00144
00153 virtual void add_to_dense_vec(float64_t alpha, int32_t vec_idx1,
00154 float64_t* vec2, int32_t vec2_len, bool abs_val=false);
00155
00156 protected:
00157
00161 uint32_t liblbp_pyr_get_dim(uint16_t nPyramids);
00162
00163 protected:
00165 CDenseFeatures<uint32_t>* m_feat;
00166
00168 uint32_t* img;
00170 int32_t img_nRows;
00172 int32_t img_nCols;
00174 int32_t vec_nDim;
00175 };
00176 }
00177 #endif