code for image enhancement techniques on gray image

I need to do coding for this techniques using gray image..

Mean filter for 3 x 3, 5 x 5, 9 x 9 pixels size, Max filter for 3 x 3, 5 x 5, 9 x 9 pixel size, Min filter for 3 x 3, 5 x 5, 9 x 9 pixel size

[Tasnim]

i need to do coding for Image enhancement techniques for real world examples using digital images

Answer 1

[Image Analyst]

Try this:

for windowWidth = [3,5,9]
  % Mean
  meanImage = conv2(grayImage, ones(windowWidth)/windowWidth^2, 'same');
  % Min
  minImage = imerode(grayImage, ones(windowWidth));
  % Max
  maxImage = imdilate(grayImage, ones(windowWidth));
end

Of course you can display them in the loop or whatever you want to do.