#pragma once
#if __cplusplus
extern "C"
{
#endif
#include "image_util.h"
#include "dl_lib_matrix3d.h"
#include "frmn.h"
#define FACE_WIDTH 56
#define FACE_HEIGHT 56
#define FACE_ID_SIZE 512
#define FACE_REC_THRESHOLD 0.55
#define LEFT_EYE_X 0
#define LEFT_EYE_Y 1
#define RIGHT_EYE_X 6
#define RIGHT_EYE_Y 7
#define NOSE_X 4
#define NOSE_Y 5
#define LEFT_MOUTH_X 2
#define LEFT_MOUTH_Y 3
#define RIGHT_MOUTH_X 8
#define RIGHT_MOUTH_Y 9
#define EYE_DIST_SET 16.5f
#define NOSE_EYE_RATIO_THRES_MIN 0.49f
#define NOSE_EYE_RATIO_THRES_MAX 2.04f
#define ENROLL_NAME_LEN 16
typedef struct tag_face_id_node
{
struct tag_face_id_node *next; /*!< next face id node */
char id_name[ENROLL_NAME_LEN]; /*!< name corresponding to the face id */
dl_matrix3d_t *id_vec; /*!< face id */
} face_id_node;
typedef struct
{
face_id_node *head; /*!< head pointer of the id list */
face_id_node *tail; /*!< tail pointer of the id list */
uint8_t count; /*!< number of enrolled ids */
uint8_t confirm_times; /*!< images needed for one enrolling */
} face_id_name_list;
typedef struct
{
uint8_t head; /*!< head index of the id list */
uint8_t tail; /*!< tail index of the id list */
uint8_t count; /*!< number of enrolled ids */
uint8_t size; /*!< max len of id list */
uint8_t confirm_times; /*!< images needed for one enrolling */
dl_matrix3d_t **id_list; /*!< stores face id vectors */
} face_id_list;
/**
* @brief Initialize face id list.
*
* @param l Face id list
* @param size Size of list, one list contains one vector
* @param confirm_times Enroll times for one id
*/
void face_id_init(face_id_list *l, uint8_t size, uint8_t confirm_times);
/**
* @brief Initialize face id list with name.
*
* @param l Face id list
* @param size Size of list, one list contains one vector
* @param confirm_times Enroll times for one id
*/
void face_id_name_init(face_id_name_list *l, uint8_t size, uint8_t confirm_times);
/**
* @brief Alloc memory for aligned face.
*
* @return dl_matrix3du_t* Size: 1xFACE_WIDTHxFACE_HEIGHTx3
*/
dl_matrix3du_t *aligned_face_alloc();
/**@{*/
/**
* @brief Align detected face to average face according to landmark.
*
* @param onet_boxes Output of MTMN with box and landmark
* @param src Image matrix, rgb888 format
* @param dest Output image
* @return ESP_OK Input face is good for recognition
* @return ESP_FAIL Input face is not good for recognition
*/
int8_t align_face_rot(box_array_t *onet_boxes,
dl_matrix3du_t *src,
dl_matrix3du_t *dest);
int8_t align_face_sim(box_array_t *onet_boxes,
dl_matrix3du_t *src,
dl_matrix3du_t *dest);
inline int8_t align_face(box_array_t *onet_boxes,
dl_matrix3du_t *src,
dl_matrix3du_t *dest)
{
return align_face_sim(onet_boxes, src, dest);
}
/**@}*/
/**
* @brief Run the face recognition model to get the face feature
*
* @param aligned_face A 56x56x3 image, the variable need to do align_face first
* @return face_id A 512 vector, size (1, 1, 1, 512)
*/
dl_matrix3d_t *get_face_id(dl_matrix3du_t *aligned_face);
/**
* @brief Add src_id to dest_id
*
* @param dest_id Face id after accumulation
* @param src_id Face id to be added
*/
void add_face_id(dl_matrix3d_t *dest_id,
dl_matrix3d_t *src_id);
/**
* @brief Match face with the id_list, and return matched_id.
*
* @param l An ID list
* @param algined_face An aligned face
* @return int8_t Matched face id
*/
int8_t recognize_face(face_id_list *l, dl_matrix3du_t *algined_face);
/**
* @brief Match face id with the id_list, and return matched face id node.
*
* @param l
* @param face_id
* @return face_id_node*
*/
face_id_node *recognize_face_with_name(face_id_name_list *l, dl_matrix3d_t *face_id);
/**
* @brief Produce face id according to the input aligned face, and save it to dest_id.
*
* @param l Face id list
* @param aligned_face An aligned face
* @param enroll_confirm_times Confirm times for each face id enrollment
* @return -1 Wrong input enroll_confirm_times
* @return 0 Enrollment finish
* @return >=1 The left piece of aligned faces should be input
*/
int8_t enroll_face(face_id_list *l, dl_matrix3du_t *aligned_face);
/**
* @brief Produce face id according to the input aligned face, and save the id-name pairs to dest_id
*
* @param l Face id list with name
* @param new_id A face id that need to be enrolled
* @param name name corresponding to the face id
* @return int8_t The left piece of aligned faces should be input
*/
int8_t enroll_face_with_name(face_id_name_list *l,
dl_matrix3d_t *new_id,
char *name);
/**
* @brief Delete the enrolled face IDs
*
* @param l Face id list
* @return uint8_t The number of IDs remaining in face id list
*/
uint8_t delete_face(face_id_list *l);
/**
* @brief Delete the enrolled face IDs and associated names
*
* @param l Face id list
* @param name The name that needs to be deleted
* @return int8_t The number of IDs remaining in face id list
*/
int8_t delete_face_with_name(face_id_name_list *l, char *name);
/**
* @brief Delete all the enrolled face IDs and names paris
*
* @param l Face id list with names
*/
void delete_face_all_with_name(face_id_name_list *l);
#if __cplusplus
}
#endif