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How save multiple image in a "BOOST_FOREACH" loop

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I have written the snippet code below to save multiple images with different names but it doesn't work. Thanks in advance for your help. #include #include #include ........ int nBlur[] = {5, 7, 13}; BOOST_FOREACH( int i, nBlur) { std::string str = boost::lexical_cast(i); // convert i to string string imgF = "imgBlur" + i; const char *imgFile = imgF.c_str(); GaussianBlur(imgGray, imgGrayBlur, Size(i,i), 0, 0 ); //imshow("Blurring image", imgGrayBlur); Mat blurred(imgGrayBlur); imwrite(imgFile+".png", imgGrayBlur); }

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