First you need to declare and read your picture:
img = imread('your_picture.bmp');
If you have already created matrices according to the assignment C - i. And ii. and that would be something like this:
I = [1/9 1/9 1/9;1/9 1/9 1/9;1/9 1/9 1/9];
II = [-1 -1 0;-1 0 1;0 1 1];
Finally, you want to use an imfilter() to filter image separately with created filters (matrices):
filtered_img1 = imfilter(img, I);
filtered_img2 = imfilter(img, II);
And if you want to show filtered images both at the same time:
subplot(121)
imshow(filtered_img1)
subplot(122)
imshow(filtered_img2)
