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#include "opencv2/photo.hpp"
#include "opencv2/imgcodecs.hpp"
#include "opencv2/highgui.hpp"
#include <vector>
#include <iostream>
#include <fstream>
using namespace cv;
using namespace std;
void loadExposureSeq(String, vector<Mat>&, vector<float>&);
int main(int argc, char**argv)
{
CommandLineParser parser( argc, argv, "{@input | | Input directory that contains images and exposure times. }" );
//! [Load images and exposure times]
vector<Mat> images;
vector<float> times;
loadExposureSeq(parser.get<String>( "@input" ), images, times);
//! [Load images and exposure times]
//! [Estimate camera response]
Mat response;
Ptr<CalibrateDebevec> calibrate = createCalibrateDebevec();
calibrate->process(images, response, times);
//! [Estimate camera response]
//! [Make HDR image]
Mat hdr;
Ptr<MergeDebevec> merge_debevec = createMergeDebevec();
merge_debevec->process(images, hdr, times, response);
//! [Make HDR image]
//! [Tonemap HDR image]
Mat ldr;
Ptr<Tonemap> tonemap = createTonemap(2.2f);
tonemap->process(hdr, ldr);
//! [Tonemap HDR image]
//! [Perform exposure fusion]
Mat fusion;
Ptr<MergeMertens> merge_mertens = createMergeMertens();
merge_mertens->process(images, fusion);
//! [Perform exposure fusion]
//! [Write results]
imwrite("fusion.png", fusion * 255);
imwrite("ldr.png", ldr * 255);
imwrite("hdr.hdr", hdr);
//! [Write results]
return 0;
}
void loadExposureSeq(String path, vector<Mat>& images, vector<float>& times)
{
path = path + "/";
ifstream list_file((path + "list.txt").c_str());
string name;
float val;
while(list_file >> name >> val) {
Mat img = imread(path + name);
images.push_back(img);
times.push_back(1 / val);
}
list_file.close();
}
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