#include "faceDB.h"
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#include <iostream>
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//"./out1.db"
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char *db_path = "out.db";
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faceDB::faceDB()
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{
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// ´´½¨ÈËÁ³Êý¾Ý¿â¾ä±ú
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cv_verify_create_db(&handle_db);
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fprintf(stderr, "create cv_verify_create_db\n");
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cv_verify_create_handle(&handle_verify, "../models/verify.model");
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fprintf(stderr, "create cv_verify_create_handle\n");
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cv_face_create_detector(&handle_detect, NULL, CV_DETECT_ENABLE_ALIGN_21);
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fprintf(stderr, "create cv_face_create_detector\n");
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db_load();
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fprintf(stderr, "db load\n");
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}
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faceDB::~faceDB() {}
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/*
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faceDB* faceDB::GetInstance(){
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if (db == NULL)
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{
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db = new faceDB();
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}
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return db;
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}*/
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//Êý¾Ý¿âÌí¼ÓÊý¾Ý£¬²¢·µ»Ø¼Ç¼µÃid
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int faceDB::db_add(cv_feature_t* p_feature)
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{
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int idx;
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cv_result_t cv_result = cv_verify_add_face(handle_db, p_feature, &idx);
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if (cv_result != CV_OK) {
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fprintf(stderr, "cv_verify_add_face failed, error code %d\n", cv_result);
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}
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cv_verify_release_feature(p_feature);
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return idx;
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}
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//Êý¾Ý¿â±£´æ
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bool faceDB::db_save()
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{
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cv_result = cv_verify_save_db(handle_db, db_path);
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if (cv_result != CV_OK) {
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fprintf(stderr, "cv_verify_save_db failed, error code %d\n", cv_result);
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return false;
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} else {
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fprintf(stderr, "save done!\n");
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}
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return true;
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}
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//Êý¾Ý¿â¼ÓÔØ
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bool faceDB::db_load()
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{
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if (handle_db != NULL) {
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fprintf(stderr, "handle_db is not null!%s\n",db_path);
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} else {
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fprintf(stderr, "handle_db is null!%s\n",db_path);
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}
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cv_result = cv_verify_load_db(handle_db, db_path);
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if (cv_result != CV_OK) {
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fprintf(stderr, "cv_verify_load_db failed, error code %d\n", cv_result);
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return false;
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} else {
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fprintf(stderr, "load done!\n");
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}
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return true;
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}
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//ËÑË÷Êý¾Ý¿â
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int faceDB::search_db(cv_feature_t *p_feature)
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{
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int indx=-1;
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//²éѯǰ10Ìõ
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int top_k = 3;
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int *top_idxs = new int[top_k];
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float *top_scores = new float[top_k];
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unsigned int result_length = 0;
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cv_result = cv_verify_search_face(handle_verify, handle_db,
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p_feature, top_k,
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top_idxs, top_scores, &result_length);
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if (cv_result == CV_OK) {
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//Êä³ö¼ì²é½á¹û
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for (unsigned int t = 0; t < result_length; t++) {
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// const cv_feature_t item = result[t].item;
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fprintf(stderr, "%d\t", top_idxs[t]);
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fprintf(stderr, "%0.2f\n", top_scores[t]);
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}
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} else {
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fprintf(stderr, "cv_verify_search_face failed, error code %d\n", cv_result);
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}
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if (top_scores[0] != 0) {
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indx=top_idxs[0];
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}
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if (top_idxs) {
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delete[]top_idxs;
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}
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if (top_scores) {
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delete[]top_scores;
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}
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cv_verify_release_feature(p_feature);
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return indx;
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}
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cv_feature_t* faceDB::extract_feature(cv::Mat image_color)
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{
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if (handle_verify != NULL) {
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fprintf(stderr, "fdb.handle_verify is not null!\n");
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} else {
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fprintf(stderr, "fdb.handle_verify is null!\n");
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}
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cv_feature_t *p_feature = NULL;
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cv_face_t *p_face = NULL;
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int face_count = 0;
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cv_result_t st_result = CV_OK;
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st_result = cv_face_detect(handle_detect, image_color.data, CV_PIX_FMT_BGR888,
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image_color.cols, image_color.rows, image_color.step,
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CV_FACE_UP, &p_face, &face_count);
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if (face_count >= 1) {
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st_result = cv_verify_get_feature(handle_verify,
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(unsigned char *)image_color.data, CV_PIX_FMT_BGR888,
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image_color.cols, image_color.rows, image_color.step,
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p_face, &p_feature, NULL);
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if (st_result != CV_OK) {
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fprintf(stderr, "cv_verify_get_feature failed, error code %d\n", st_result);
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}
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} else {
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fprintf(stderr, "can't find face in ");
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}
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// release the memory of face
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cv_face_release_detector_result(p_face, face_count);
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return p_feature;
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}
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