How to calculate the mean and standard deviation of the 27 neighbourhood of a voxel in a 3D matrix?

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Hello everybody!
I have a matrix 336*336*65. I want to create two new matrices of the same size, one representing the mean value of the 27-neighboor of each voxel and another one representing the standard deviation for the same neighbors.
Can anyone help me?

Risposta accettata

Image Analyst
Image Analyst il 25 Apr 2017
Use convn() and stdfilt().
kernel = ones(3,3,3);
out = convn(inputImage, kernel, 'same')

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