calculating an expression in an efficient way
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I have binary image size mxn with K number of 1's at different location (Xk,Yk). Now i want to produce a spatial voting image such that each point (1's) has the highest vote at its spatial coordinate (Xk, Yk), and its votes decrease with respect to the spatial distance. So voting matrix for X = 1.....m and Y=1.....n, can be calulated with formula shown in picuture.
standard deviation sigma can be left as 1.
So how to calculate that expression in an efficient way?
Thanks
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