MATLAB Answers

Apply a mean filter on a matrix

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How can i apply a mean or laplacian or average or any kind of filters 3x3
on any matrix i give it to it and get the new matrix ?
What is the code for it

  1 Comment

Rik
Rik on 9 Jul 2020
A simple Google search should get you most of the way there. What did you try?

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Accepted Answer

Image Analyst
Image Analyst on 9 Jul 2020
How about imfilter()
filterWindow = ones(3) / 9;
filteredImage = imfilter(m, filterWindow);
Or for the Laplacian, how about conv2():
filterWindow = -1 * ones(3);
filterWindow = 8;
filteredImage = conv2(m, filterWindow, 'same');

  2 Comments

Hassan Bosha
Hassan Bosha on 9 Jul 2020
is there a one for median filter ?
Image Analyst
Image Analyst on 9 Jul 2020
You can use medfilt2().

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