You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
1.4 KiB
63 lines
1.4 KiB
#pragma once
|
|
|
|
#include <image_io.hpp>
|
|
#include <fingerprints.hpp>
|
|
|
|
#include <boost/serialization/access.hpp>
|
|
#include <boost/serialization/vector.hpp>
|
|
|
|
#include <vector>
|
|
#include <string>
|
|
|
|
template <typename Fingerprint, typename Traits = fingerprint_traits<Fingerprint>>
|
|
struct image_database {
|
|
using index = size_t;
|
|
|
|
void add(std::string const & filename){
|
|
auto && image = open_image(filename);
|
|
auto && fingerprint = Traits::calculate(image);
|
|
|
|
filenames.push_back(filename);
|
|
fingerprints.push_back(fingerprint);
|
|
}
|
|
|
|
std::string filename(index i) const {
|
|
return filenames.at(i);
|
|
}
|
|
|
|
Fingerprint fingerprint(index i) const {
|
|
return fingerprints.at(i);
|
|
}
|
|
|
|
auto size() const {
|
|
return fingerprints.size();
|
|
}
|
|
|
|
index nearest_image(av::frame const & image) const {
|
|
const auto && pre_fingerprint = Traits::pre_calculate(image);
|
|
|
|
index best_index = 0;
|
|
auto && best_distance = Traits::distance(fingerprints[0], pre_fingerprint);
|
|
|
|
for(index i = 1; i < fingerprints.size(); ++i){
|
|
const auto && distance = Traits::distance(fingerprints[i], pre_fingerprint);
|
|
if(distance < best_distance) {
|
|
best_distance = distance;
|
|
best_index = i;
|
|
}
|
|
}
|
|
|
|
return best_index;
|
|
}
|
|
|
|
private:
|
|
friend class boost::serialization::access;
|
|
template<class Archive>
|
|
void serialize(Archive & ar, const unsigned int /*version*/){
|
|
ar & filenames;
|
|
ar & fingerprints;
|
|
}
|
|
|
|
std::vector<std::string> filenames;
|
|
std::vector<Fingerprint> fingerprints;
|
|
};
|
|
|