Mask = [1/9 1/9 1/9; 1/9 1/9 1/9; 1/9 1/9 1/9;];
im = imread('lena.pgm');
x = conv2(im,Mask);
figure(1);
imshow(im);
figure(2);
imshow(uint8(x)); %obraz bardziej wyg?adzony
F = fftshift(fft2(im));
M = log(abs(F)+1);
M = (M./max(max(M)))*255;
figure(3);
imshow(uint8(M));
F = fftshift(fft2(x));
M = log(abs(F)+1);
M = (M./max(max(M)))*255;
figure(4);
imshow(uint8(M));
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