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00011 #ifndef _LBP_PYR_DOTFEATURES__H__
00012 #define _LBP_PYR_DOTFEATURES__H__
00013
00014 #include "lib/common.h"
00015 #include "features/DotFeatures.h"
00016 #include "features/SimpleFeatures.h"
00017
00018 namespace shogun
00019 {
00025 class CLBPPyrDotFeatures : public CDotFeatures
00026 {
00027 public:
00029 CLBPPyrDotFeatures(void);
00030
00035 CLBPPyrDotFeatures(CSimpleFeatures<uint32_t>* images, uint16_t num_pyramids);
00036
00037 virtual ~CLBPPyrDotFeatures();
00038
00045 CLBPPyrDotFeatures(const CLBPPyrDotFeatures & orig){
00046 SG_PRINT("CLBPPyrDotFeatures:\n");
00047 SG_NOTIMPLEMENTED;};
00048
00053 inline virtual int32_t get_dim_feature_space()
00054 {
00055 return vec_nDim;
00056 }
00057
00063 virtual inline int32_t get_nnz_features_for_vector(int32_t num)
00064 {
00065 return vec_nDim;
00066 }
00067
00072 inline virtual EFeatureType get_feature_type()
00073 {
00074 return F_UNKNOWN;
00075 }
00076
00081 inline virtual EFeatureClass get_feature_class()
00082 {
00083 return C_POLY;
00084 }
00085
00090 inline virtual int32_t get_num_vectors()
00091 {
00092 if (m_feat)
00093 return m_feat->get_num_vectors();
00094 else
00095 return 0;
00096
00097 }
00098
00106 virtual float64_t dot(int32_t vec_idx1, CDotFeatures* df, int32_t vec_idx2);
00107
00112 inline virtual int32_t get_size()
00113 {
00114 return sizeof(float64_t);
00115 }
00116
00126 virtual void* get_feature_iterator(int32_t vector_index)
00127 {
00128 SG_NOTIMPLEMENTED;
00129 return NULL;
00130 }
00131
00142 virtual bool get_next_feature(int32_t& index, float64_t& value, void* iterator)
00143 {
00144 SG_NOTIMPLEMENTED;
00145 return NULL;
00146 }
00147
00153 virtual void free_feature_iterator(void* iterator)
00154 {
00155 SG_NOTIMPLEMENTED;
00156 }
00157
00162 CFeatures* duplicate() const;
00163
00168 inline virtual const char* get_name() const { return "LBPPyrDotFeatures"; }
00169
00177 virtual float64_t dense_dot(int32_t vec_idx1, const float64_t* vec2, int32_t vec2_len);
00178
00187 virtual void add_to_dense_vec(float64_t alpha, int32_t vec_idx1, float64_t* vec2, int32_t vec2_len, bool abs_val=false);
00188 protected:
00189 uint32_t liblbp_pyr_get_dim(uint16_t nPyramids);
00190
00191 protected:
00193 CSimpleFeatures<uint32_t>* m_feat;
00194
00195 uint32_t* img;
00196 int32_t img_nRows;
00197 int32_t img_nCols;
00198 int32_t vec_nDim;
00199 };
00200 }
00201 #endif