Tranos

I am having problems in programming local median in active contour without edges.Local refers to that
only neighboring pixels will be considered. A simplest implementation
of the ”neighborhood” is to introduce a rectangular
window W with size of 2k +1 by 2k +1, where k
is a constant integer. Therefore,
f1 = median(u0 ? inside(C) ?W) (6)
f2 = median(u0 ? outside(C) ?W) (7)
The functions f1 and f2 are defined on the entire image
domain. f1(x, y) is computed for each point (x, y), and it
takes the median intensity value for the neighboring pixels
that are inside the moving curve C. f2(x, y) takes the
median intensity value for the neighboring pixels that are
outside the moving curve. Can someone help to interpret how I can programe the above.
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