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63 lines
1.4 KiB
63 lines
1.4 KiB
#pragma once
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#include <image_io.hpp>
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#include <fingerprint.hpp>
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#include <boost/serialization/access.hpp>
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#include <boost/serialization/vector.hpp>
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#include <vector>
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#include <string>
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template <typename Fingerprint, typename Traits = fingerprint_traits<Fingerprint>>
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struct image_database {
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using index = size_t;
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void add(std::string filename){
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auto image = open_as_rgb(filename);
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auto fingerprint = Traits::calculate(image);
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filenames.push_back(filename);
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fingerprints.push_back(fingerprint);
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}
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std::string filename(index i) const {
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return filenames.at(i);
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}
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Fingerprint fingerprint(index i) const {
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return fingerprints.at(i);
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}
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auto size() const {
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return fingerprints.size();
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}
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index nearest_image(raw_rgb_image const & image) const {
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auto fingerprint = Traits::calculate(image);
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index best_index = 0;
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auto best_distance = Traits::distance(fingerprint, fingerprints[0]);
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for(index i = 1; i < fingerprints.size(); ++i){
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auto distance = Traits::distance(fingerprint, fingerprints[i]);
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if(distance < best_distance) {
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best_distance = distance;
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best_index = i;
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}
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}
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return best_index;
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}
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private:
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friend class boost::serialization::access;
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template<class Archive>
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void serialize(Archive & ar, const unsigned int /*version*/){
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ar & filenames;
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ar & fingerprints;
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}
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std::vector<std::string> filenames;
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std::vector<Fingerprint> fingerprints;
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};
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