OPENCV HDR

#include "stdafx.h">


/*  For description look into the help() function. */


#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)
{
	//! [Load images and exposure times]
	vector<Mat> images;
	vector<float> times;
	loadExposureSeq("F://opencv//VS_demo//opencvdemo//data//Memorial_SourceImages", 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 + "//";
	string str = path + "list.txt";
	ifstream list_file(str.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();
}

运行：

输入: 

输出：