how could i turn this into a 5 by 5 filter

I= imread('peppers.png');
I2=I;
[r, c,]=size(I);

for i = 2:r-1 
    for j = 2: c-1 
        uint8=[I(i-1,j-1),I(i-1,j),I(i-1,j+1),I(i,j-1),I(i,j),I(i,j+1),...
            I(i+1,j-1),I(i+1,j),I(i+1,j+1)];
        uint8=sort(uint8);
        I2(i,j)= uint8(5);
    end
end 

figure;
imshow(I);
title('peppers noisy');
figure;
imshow(I2);
title('peppers');

[DGM]

The last comment I left on your other question implements a 5x5 median filter. The filter size is adjustable.

https://www.mathworks.com/matlabcentral/answers/1634085-i-have-created-an-algorithm-for-a-median-rgb-image-filter-however-it-doesn-t-seem-to-be-working#comment_1949010

I also included a link to a second example of an adjustable (example shows 5x5) size median filter using a slightly different approach.

Note that in this version of your code, you're shadowing the built-in function uint8() by using that as a variable name.

[Lewis Laurence]

thank you for your comments. Im just struggling on how I would implement this.

Answer 1

[Matt J]

I2=medfilt2(I,[5,5]);