lọc ảnh dicom

I = imread('hình.jpg');

 imshow(I,[ ])

  k = rgb2gray(I);

 J = imnoise(I,'gaussian',0,0.005);

b = imnoise(I,'salt & pepper',0.02);

imshow(k),imshow(J),imshow(b)

x = ones(5,5) / 25;

y = imfilter(b,x);

imshow(y)

h = fspecial('unsharp');

I2 = imfilter(I,h);

imshow(I2)