main.cpp

Demonstration of faulty behaviour - B P, 2011-06-08 05:01 pm

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#include <iostream>
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#include <cxcore.hpp>
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void main()





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{





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    cv::Mat img3x3(3, 3, CV_8UC1);





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    cv::Mat img2x2 = img3x3(cv::Rect(0, 0, 2, 2));





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    for(cv::MatIterator_<uchar> it = img3x3.begin<uchar>(); it != img3x3.end<uchar>(); ++it)





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                *it = 1;





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        int sum = 0;





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    for(cv::MatConstIterator_<uchar> it = img2x2.begin<uchar>(); it != img2x2.end<uchar>(); ++it)





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                sum += *it;





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        std::cout << "sum = " << sum << " (should be 4)\n";





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}