C++ 多项目dll调用-隐式

将DAA人脸检测做成动态库以便其他程序调用，采用隐式调用完成。

给出部分关于dll制作的关键代码：

1.DLL

多项目DLL编写注意将其他相关项目设置成静态库，以及各库涉及的版本一致性。

DLL.h

1 #define DLL_API __declspec(dllexport)  
2 #include<iostream>  
3 #include<opencv.hpp>
4 
5 
6 DLL_API void FaceDecter(cv::Mat& source,std::vector<cv::Rect>& rects);

DLL.cpp

 1 #include "stdafx.h"
 2 #include "FaceDectectDll.h"
 3 #include "../libmi_dpm/face_detector.hpp"
 4 #include <fstream>
 5 
 6 using namespace std;
 7 using namespace mi_dpm;
 8 using namespace cv;
 9 
10 DLL_API void FaceDecter(cv::Mat &source, std::vector <cv::Rect> & rects)
11 {
12     Detector face_det;
13     face_det.detectInit();
14     vector<float> scores;
15     vector<int> picked;
16     picked = face_det.detectFastMerge(source, rects, scores);
17 }

2.DLL调用

在demo中新建文件夹 lib-DAA ，include-DAA 存放静态库以及相关头文件，在可执行文件下放入动态库dll。

demo.h

 1 // stdafx.h : include file for standard system include files,
 2 // or project specific include files that are used frequently,
 3 // but are changed infrequently
 4 
 5 #pragma once
 6 
 7 #ifndef _SECURE_ATL
 8 #define _SECURE_ATL 1
 9 #endif
10 
11 #ifndef VC_EXTRALEAN
12 #define VC_EXTRALEAN            // Exclude rarely-used stuff from Windows headers
13 #endif
14 
15 
16 
17 #define _ATL_CSTRING_EXPLICIT_CONSTRUCTORS      // some CString constructors will be explicit
18 
19 // turns off MFC's hiding of some common and often safely ignored warning messages
20 #define _AFX_ALL_WARNINGS
21 
22 #include "../include-DAA/FaceDectectDll.h"
23 #pragma comment(lib,"../lib-DAA/lib3000fps.lib")
24 #pragma comment(lib,"../lib-DAA/liblinear.lib")
25 #pragma comment(lib,"../lib-DAA/libmi_dpm.lib")
26 #pragma comment(lib,"../lib-DAA/mi_dpm.lib")
27 
28 
29 //#include <cxcore.h>
30 //#include <highgui.h>
31 #include<opencv.hpp>
32 
33 
34 using namespace cv;
35 using namespace std;

demo.cpp

 1 #include <iostream>
 2 #include "stdafx.h"
 3 
 4 //#include <Windows.h>
 5 
 6 int main()
 7 {
 8     Mat im = imread("F:/科研/人脸识别/DAA/mi_dpm/mi_dpm/testpic/tmp_rs.jpg");
 9     vector<Rect> re;// = FaceDecter(im);
10     FaceDecter(im, re);
11     int nNum = re.size();
12     cout << nNum << endl;
13     for (int i = 0; i < nNum; i++)
14     {
15         cv::rectangle(im, re[i], cv::Scalar(0, 125, 255), 2);
16         printf("%d %d %d %d\n", re[i].x, re[i].y, re[i].width, re[i].height);
17     }
18     imshow("dec",im);
19     waitKey(30);
20     system("pause");
21 
22 }

 

posted on 2017-03-12 15:07  Pkj  阅读(320)  评论(0)  编辑  收藏  举报

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