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I want to solve the equation (2) in the attached picture which tells the local mean value. But i don't have any idea about how to evaluate this equation using matlab code. could only guess w indicates window size. What does g(m,n) means? Can anyone please help me to understand this concept?

Screenshot

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    $\begingroup$ There is nothing to solve here. Equation 2 is a definition of $\bar{g}$. All you need to do is to evaluate it. $\endgroup$
    – A_A
    Commented Feb 27, 2019 at 7:41
  • $\begingroup$ yes i dont have any idea about how to evaluate it. $\endgroup$
    – Emerson EJ
    Commented Feb 27, 2019 at 8:28
  • $\begingroup$ @EmersonEJ, Could you review my answer? $\endgroup$
    – Royi
    Commented Jul 12, 2023 at 11:28

1 Answer 1

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This is basically a filter which calculates the mean.

In MATLAB you can achieve this using:

mK = ones(w, w) / (w * w);
mGBar = imfilter(mG, mK);

Basically the value of mGBar(m, n) equals to the mean value of a window of size wxw centered at mG(m, n).

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