1 #include "stdafx.h">
 2  
 3  
 4 /*  For description look into the help() function. */
 5  
 6  
 7 #include "opencv2/photo.hpp"
 8 #include "opencv2/imgcodecs.hpp"
 9 #include "opencv2/highgui.hpp"
10  
11 #include <vector>
12 #include <iostream>
13 #include <fstream>
14  
15 using namespace cv;
16 using namespace std;
17  
18 void loadExposureSeq(String, vector<Mat>&, vector<float>&);
19  
20 int main(int argc, char**argv)
21 {
22     //! [Load images and exposure times]
23     vector<Mat> images;
24     vector<float> times;
25     loadExposureSeq("F://opencv//VS_demo//opencvdemo//data//Memorial_SourceImages", images, times);
26     //! [Load images and exposure times]
27  
28     //! [Estimate camera response]
29     Mat response;
30     Ptr<CalibrateDebevec> calibrate = createCalibrateDebevec();
31     calibrate->process(images, response, times);
32     //! [Estimate camera response]
33  
34     //! [Make HDR image]
35     Mat hdr;
36     Ptr<MergeDebevec> merge_debevec = createMergeDebevec();
37     merge_debevec->process(images, hdr, times, response);
38     //! [Make HDR image]
39  
40     //! [Tonemap HDR image]
41     Mat ldr;
42     Ptr<Tonemap> tonemap = createTonemap(2.2f);
43     tonemap->process(hdr, ldr);
44     //! [Tonemap HDR image]
45  
46     //! [Perform exposure fusion]
47     Mat fusion;
48     Ptr<MergeMertens> merge_mertens = createMergeMertens();
49     merge_mertens->process(images, fusion);
50     //! [Perform exposure fusion]
51  
52     //! [Write results]
53     imwrite("fusion.png", fusion * 255);
54     imwrite("ldr.png", ldr * 255);
55     imwrite("hdr.hdr", hdr);
56     //! [Write results]
57  
58     return 0;
59 }
60  
61 void loadExposureSeq(String path, vector<Mat>& images, vector<float>& times)
62 {
63     path = path + "//";
64     string str = path + "list.txt";
65     ifstream list_file(str.c_str());
66     string name;
67     float val;
68     while (list_file >> name >> val) {
69         Mat img = imread(path + name);
70         images.push_back(img);
71         times.push_back(1 / val);
72     }
73     list_file.close();
74 }

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