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Diffstat (limited to 'ml/dlib/dlib/image_keypoint/nearest_neighbor_feature_image.h')
| -rw-r--r-- | ml/dlib/dlib/image_keypoint/nearest_neighbor_feature_image.h | 408 |
1 files changed, 0 insertions, 408 deletions
diff --git a/ml/dlib/dlib/image_keypoint/nearest_neighbor_feature_image.h b/ml/dlib/dlib/image_keypoint/nearest_neighbor_feature_image.h deleted file mode 100644 index 2ee45da2f..000000000 --- a/ml/dlib/dlib/image_keypoint/nearest_neighbor_feature_image.h +++ /dev/null @@ -1,408 +0,0 @@ -// Copyright (C) 2011 Davis E. King (davis@dlib.net) -// License: Boost Software License See LICENSE.txt for the full license. -#ifndef DLIB_NEAREST_NEIGHBOR_FeATURE_IMAGE_Hh_ -#define DLIB_NEAREST_NEIGHBOR_FeATURE_IMAGE_Hh_ - -#include "nearest_neighbor_feature_image_abstract.h" -#include <vector> -#include "../algs.h" -#include "../matrix.h" -#include "../statistics.h" - -namespace dlib -{ - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - class nearest_neighbor_feature_image : noncopyable - { - /*! - INITIAL VALUE - - nn_feats.size() == 1 - - CONVENTION - - nn_feats.size() == 1 - - !*/ - - public: - - typedef std::vector<std::pair<unsigned int,double> > descriptor_type; - - nearest_neighbor_feature_image ( - ); - - void clear ( - ); - - void copy_configuration ( - const feature_extractor& item - ); - - void copy_configuration ( - const nearest_neighbor_feature_image& item - ); - - template < - typename image_type - > - inline void load ( - const image_type& img - ); - - inline size_t size ( - ) const; - - inline long nr ( - ) const; - - inline long nc ( - ) const; - - inline long get_num_dimensions ( - ) const; - - template <typename vector_type> - void set_basis ( - const vector_type& new_basis - ); - - inline const descriptor_type& operator() ( - long row, - long col - ) const; - - inline const rectangle get_block_rect ( - long row, - long col - ) const; - - inline const point image_to_feat_space ( - const point& p - ) const; - - inline const rectangle image_to_feat_space ( - const rectangle& rect - ) const; - - inline const point feat_to_image_space ( - const point& p - ) const; - - inline const rectangle feat_to_image_space ( - const rectangle& rect - ) const; - - template <typename T> - friend void serialize ( - const nearest_neighbor_feature_image<T>& item, - std::ostream& out - ); - - template <typename T> - friend void deserialize ( - nearest_neighbor_feature_image<T>& item, - std::istream& in - ); - - private: - - array2d<unsigned long> feats; - feature_extractor fe; - std::vector<typename feature_extractor::descriptor_type> basis; - - // This is a transient variable. It is just here so it doesn't have to be - // reallocated over and over inside operator() - mutable descriptor_type nn_feats; - - }; - -// ---------------------------------------------------------------------------------------- - - template <typename T> - void serialize ( - const nearest_neighbor_feature_image<T>& item, - std::ostream& out - ) - { - serialize(item.feats, out); - serialize(item.fe, out); - serialize(item.basis, out); - } - - template <typename T> - void deserialize ( - nearest_neighbor_feature_image<T>& item, - std::istream& in - ) - { - deserialize(item.feats, in); - deserialize(item.fe, in); - deserialize(item.basis, in); - } - -// ---------------------------------------------------------------------------------------- -// ---------------------------------------------------------------------------------------- -// nearest_neighbor_feature_image member functions -// ---------------------------------------------------------------------------------------- -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - nearest_neighbor_feature_image<feature_extractor>:: - nearest_neighbor_feature_image ( - ) - { - nn_feats.resize(1); - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - void nearest_neighbor_feature_image<feature_extractor>:: - clear ( - ) - { - feats.clear(); - fe.clear(); - basis.clear(); - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - void nearest_neighbor_feature_image<feature_extractor>:: - copy_configuration ( - const feature_extractor& item - ) - { - fe.copy_configuration(item); - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - void nearest_neighbor_feature_image<feature_extractor>:: - copy_configuration ( - const nearest_neighbor_feature_image& item - ) - { - fe.copy_configuration(item.fe); - basis = item.basis; - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - template < - typename image_type - > - void nearest_neighbor_feature_image<feature_extractor>:: - load ( - const image_type& img - ) - { - fe.load(img); - - feats.set_size(fe.nr(), fe.nc()); - - // find the nearest neighbor for each feature vector and store the - // result in feats. - for (long r = 0; r < feats.nr(); ++r) - { - for (long c = 0; c < feats.nc(); ++c) - { - const typename feature_extractor::descriptor_type& local_feat = fe(r,c); - - double best_dist = std::numeric_limits<double>::infinity(); - unsigned long best_idx = 0; - for (unsigned long i = 0; i < basis.size(); ++i) - { - double dist = length_squared(local_feat - basis[i]); - if (dist < best_dist) - { - best_dist = dist; - best_idx = i; - } - } - - feats[r][c] = best_idx; - } - } - - fe.unload(); - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - size_t nearest_neighbor_feature_image<feature_extractor>:: - size ( - ) const - { - return feats.size(); - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - long nearest_neighbor_feature_image<feature_extractor>:: - nr ( - ) const - { - return feats.nr(); - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - long nearest_neighbor_feature_image<feature_extractor>:: - nc ( - ) const - { - return feats.nc(); - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - long nearest_neighbor_feature_image<feature_extractor>:: - get_num_dimensions ( - ) const - { - return basis.size(); - } - -// ---------------------------------------------------------------------------------------- - - template <typename feature_extractor> - template <typename vector_type> - void nearest_neighbor_feature_image<feature_extractor>:: - set_basis ( - const vector_type& new_basis - ) - { - basis.assign(new_basis.begin(), new_basis.end()); - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - const typename nearest_neighbor_feature_image<feature_extractor>::descriptor_type& - nearest_neighbor_feature_image<feature_extractor>:: - operator() ( - long row, - long col - ) const - { - // make sure requires clause is not broken - DLIB_ASSERT(0 <= row && row < nr() && - 0 <= col && col < nc(), - "\t descriptor_type nearest_neighbor_feature_image::operator(row,col)" - << "\n\t Invalid inputs were given to this function" - << "\n\t row: " << row - << "\n\t col: " << col - << "\n\t nr(): " << nr() - << "\n\t nc(): " << nc() - << "\n\t this: " << this - ); - - nn_feats[0] = std::make_pair(feats[row][col],1); - return nn_feats; - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - const rectangle nearest_neighbor_feature_image<feature_extractor>:: - get_block_rect ( - long row, - long col - ) const - { - return fe.get_block_rect(row,col); - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - const point nearest_neighbor_feature_image<feature_extractor>:: - image_to_feat_space ( - const point& p - ) const - { - return fe.image_to_feat_space(p); - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - const rectangle nearest_neighbor_feature_image<feature_extractor>:: - image_to_feat_space ( - const rectangle& rect - ) const - { - return fe.image_to_feat_space(rect); - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - const point nearest_neighbor_feature_image<feature_extractor>:: - feat_to_image_space ( - const point& p - ) const - { - return fe.feat_to_image_space(p); - } - -// ---------------------------------------------------------------------------------------- - - template < - typename feature_extractor - > - const rectangle nearest_neighbor_feature_image<feature_extractor>:: - feat_to_image_space ( - const rectangle& rect - ) const - { - return fe.feat_to_image_space(rect); - } - -// ---------------------------------------------------------------------------------------- - -} - -#endif // DLIB_NEAREST_NEIGHBOR_FeATURE_IMAGE_Hh_ - - |