c++ MTCNN

https://github.com/szad670401/Fast-MTCNN

70ms一张，可能用的cpu

//Created by Jack Yu
#include "stdafx.h"
#include <fstream>
#include <iostream>
#include <opencv2/opencv.hpp>
#include <opencv2/dnn.hpp>
using namespace std;
using namespace cv;

const float pnet_stride = 2;
const float pnet_cell_size = 12;
const int pnet_max_detect_num = 5000;
//mean & std
const float mean_val = 127.5f;
const float std_val = 0.0078125f;
//minibatch size
const int step_size = 128;


typedef struct FaceBox {
	float xmin;
	float ymin;
	float xmax;
	float ymax;
	float score;
} FaceBox;
typedef struct FaceInfo {
	float bbox_reg[4];
	float landmark_reg[10];
	float landmark[10];
	FaceBox bbox;
} FaceInfo;



class MTCNN {
public:
	MTCNN(const string& proto_model_dir);
	vector<FaceInfo> Detect_mtcnn(const cv::Mat& img,