How to find mean value of each pixel of a coloured image

I have an image I(i,j) For each pixel I(i, j), I need to calculate 5 mean values I^(k); (k = 1,2,3,4,5) in five 7 * 7 windows W^(k) with pixel I(i,j) ,being located in the centre, top-left, top-right,bottom-left, and bottom-right of the window.

I got paused here in my project. anyone please help me.

Answer 1

[KSSV]

Have a look on the knnsearch you can get the desired number of neighbor indices with which you can get the mean. Or You can get the neighbors of (i,j) using

(i,j-1)     - left
(i,j+1)     - right 
(i-1,j)     - top
(i+1,j)    - bottom

[A.Mariya Jomet]

thank you for your help. I will try this