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https://github.com/0xFEEDC0DE64/arduino-esp32.git
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99 lines
3.8 KiB
C
99 lines
3.8 KiB
C
/*
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* ESPRESSIF MIT License
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*
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* Copyright (c) 2018 <ESPRESSIF SYSTEMS (SHANGHAI) PTE LTD>
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*
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* Permission is hereby granted for use on ESPRESSIF SYSTEMS products only, in which case,
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* it is free of charge, to any person obtaining a copy of this software and associated
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* documentation files (the "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the Software is furnished
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* to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all copies or
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* substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#pragma once
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#if __cplusplus
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extern "C"
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{
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#endif
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#include "image_util.h"
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#include "dl_lib_matrix3d.h"
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#include "mtmn.h"
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typedef enum
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{
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FAST = 0,
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NORMAL = 1,
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} mtmn_resize_type;
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typedef struct
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{
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float score; /// score threshold for filter candidates by score
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float nms; /// nms threshold for nms process
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int candidate_number; /// candidate number limitation for each net
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} threshold_config_t;
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typedef struct
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{
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int w; /// net width
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int h; /// net height
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threshold_config_t threshold; /// threshold of net
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} net_config_t;
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typedef struct
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{
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float min_face; /// The minimum size of a detectable face
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float pyramid; /// The scale of the gradient scaling for the input images
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int pyramid_times; /// The pyramid resizing times
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threshold_config_t p_threshold; /// The thresholds for P-Net. For details, see the definition of threshold_config_t
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threshold_config_t r_threshold; /// The thresholds for R-Net. For details, see the definition of threshold_config_t
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threshold_config_t o_threshold; /// The thresholds for O-Net. For details, see the definition of threshold_config_t
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mtmn_resize_type type; /// The image resize type. 'pyramid' will lose efficacy, when 'type'==FAST.
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} mtmn_config_t;
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static inline mtmn_config_t mtmn_init_config()
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{
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mtmn_config_t mtmn_config;
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mtmn_config.type = FAST;
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mtmn_config.min_face = 80;
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mtmn_config.pyramid = 0.707;
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mtmn_config.pyramid_times = 4;
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mtmn_config.p_threshold.score = 0.6;
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mtmn_config.p_threshold.nms = 0.7;
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mtmn_config.p_threshold.candidate_number = 20;
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mtmn_config.r_threshold.score = 0.7;
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mtmn_config.r_threshold.nms = 0.7;
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mtmn_config.r_threshold.candidate_number = 10;
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mtmn_config.o_threshold.score = 0.7;
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mtmn_config.o_threshold.nms = 0.7;
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mtmn_config.o_threshold.candidate_number = 1;
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return mtmn_config;
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}
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/**
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* @brief Do MTMN face detection, return box and landmark infomation.
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*
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* @param image_matrix Image matrix, rgb888 format
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* @param config Configuration of MTMN i.e. score threshold, nms threshold, candidate number threshold, pyramid, min face size
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* @return box_array_t* A list of boxes and score.
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*/
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box_array_t *face_detect(dl_matrix3du_t *image_matrix,
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mtmn_config_t *config);
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#if __cplusplus
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}
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#endif
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