Apply a mean filter on a matrix

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Hassan Bosha 2020-7-9

评论： Image Analyst 2020-7-9

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

Rik 2020-7-9

A simple Google search should get you most of the way there. What did you try?

Image Analyst 2020-7-9

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');

Hassan Bosha 2020-7-9

is there a one for median filter ?

Image Analyst 2020-7-9

You can use medfilt2().

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