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#include <iostream>
#include <vector>
#include "opencv2/opencv.hpp"
#include "opencv2/photo/photo.hpp"
#include "cxxopts/src/cxxopts.hpp"
using namespace std;
using namespace cv;
int
main (int argc, char** argv)
{
cxxopts::Options opt(argv[0], " - Options");
opt.add_options()
("f,file", "file", cxxopts::value<string>())
("s,sigma", "sigma for Gaussian Blur", cxxopts::value<float>()->default_value("3.0"))
("a,alpha", "weight of the first array elements", cxxopts::value<float>()->default_value("1.5"))
("b,beta", "weight of the second array elements", cxxopts::value<float>()->default_value("-0.5"))
("g,gamma", "scalar added to each sum", cxxopts::value<float>()->default_value("0"))
("o,output", "output file", cxxopts::value<string>());
opt.parse(argc, argv);
auto& file = opt["f"].as<string>();
auto& output = opt["o"].as<string>();
float sigma = opt["s"].as<float>();
float alpha = opt["a"].as<float>();
float beta = opt["b"].as<float>();
Mat src = imread(file, 1), dst;
cv::GaussianBlur(src, dst, cv::Size(0, 0), sigma);
cv::addWeighted(src, alpha, dst, beta, 0, dst);
imwrite(output, dst);
return 0;
}
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