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how to replace a matrix element by the avearage of its surrounding elements

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Al-Amin Alvi
Al-Amin Alvi 2015-6-15
关闭： MATLAB Answer Bot 2021-8-20
1 2 3
A= 4 5 6
7 8 9
is a matrix
resultant matrix
11/3 19/5 13/3
B= 23/5 40/8 27/5
17/3 31/5 19/3

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回答（1 个）

Henric Rydén
Henric Rydén 2015-6-15
编辑：Henric Rydén 2015-6-15
A=[ ...
1 2 3 ; ...
4 5 6 ; ...
7 8 9];
kernel = [ ...
1 1 1; ...
1 0 1 ; ...
1 1 1];
neighbors = imfilter(ones(size(A)),ones(size(A)))-1;
result = imfilter(A,kernel) ./ neighbors;

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