OpenCV vs Matlab : Different Values on pixels with imread

Question

I have encountered a problem with the function imread() in Matlab (2014) and OpenCV (3.0) on Windows 7 with jpg files.

I don\'t have the same values by

Answer 1

This code gives the correct values for your example image test2.jpg:

#include 
#include 

int main()
{
    auto img = cv::imread("test2.jpg");
    auto pixel = img.at(85, 85);
    std::cout << (int)pixel[0] << "\t" << (int)pixel[1]
              << "\t" << (int)pixel[2] << std::endl;
}

Output:

118     105     91

The OpenCV version here is 2.4.10. I get the same result when using your code. I suppose there is a bug somewhere that is beyond your influence.