x=imread('boats.pgm');
y=imread('lena.pgm');
z=imread('noised2.pgm');
c=imread('noised3.pgm');
a=imread('noised4.pgm');
SquareMask = [1 1 1 1 1; 1 1 1 1 1; 1 1 1 1 1; 1 1 1 1 1; 1 1 1 1 1];
CircleMask = [0 0 1 0 0; 0 1 1 1 0; 1 1 1 1 1; 0 1 1 1 0; 0 0 1 0 0];
w=imerode(x,SquareMask);
w1=imerode(x,CircleMask);
figure
imshow(w);
figure
imshow(w1);
figure
imshow(x)
x=imread('boats.pgm');
y=imread('lena.pgm');
z=imread('noised2.pgm');
c=imread('noised3.pgm');
a=imread('noised4.pgm');
SquareMask = [1 1 1 1 1; 1 1 1 1 1; 1 1 1 1 1; 1 1 1 1 1; 1 1 1 1 1];
CircleMask = [0 0 1 0 0; 0 1 1 1 0; 1 1 1 1 1; 0 1 1 1 0; 0 0 1 0 0];
w=imdilate(x,SquareMask);
w1=imdilate(x,CircleMask);
figure
imshow(w);
figure
imshow(w1);
figure
imshow(x)
x=imread('boats.pgm');
y=imread('lena.pgm');
z=imread('noised2.pgm');
c=imread('noised3.pgm');
a=imread('noised4.pgm');
CircleMask = [0 1 0 1 0 1 0 1 0 1 0;0 1 0 1 0 1 0 1 0 1 0;0 1 0 1 0 1 0 1 0 1 0;0 1 0 1 0 1 0 1 0 1 0;0 1 0 1 0 1 0 1 0 1 0;0 1 0 1 0 1 0 1 0 1 0;0 1 0 1 0 1 0 1 0 1 0;0 1 0 1 0 1 0 1 0 1 0;0 1 0 1 0 1 0 1 0 1 0;0 1 0 1 0 1 0 1 0 1 0;0 1 0 1 0 1 0 1 0 1 0;];
w1=imdilate(x,CircleMask);
figure
imshow(w1);
figure
imshow(x)
x=imread('boats.pgm');
y=imread('lena.pgm');
z=imread('noised2.pgm');
c=imread('noised3.pgm');
a=imread('noised4.pgm');
SquareMask = [1 1 1 1 1; 1 1 1 1 1; 1 1 1 1 1; 1 1 1 1 1; 1 1 1 1 1];
CircleMask = [0 0 1 0 0; 0 1 1 1 0; 1 1 1 1 1; 0 1 1 1 0; 0 0 1 0 0];
w=imopen(x,SquareMask);
w1=imopen(x,CircleMask);
figure
imshow(w);
figure
imshow(w1);
figure
imshow(x)
x=imread('boats.pgm');
y=imread('lena.pgm');
z=imread('noised2.pgm');
c=imread('noised3.pgm');
a=imread('noised4.pgm');
SquareMask = [1 1 1 1 1; 1 1 1 1 1; 1 1 1 1 1; 1 1 1 1 1; 1 1 1 1 1];
CircleMask = [0 0 1 0 0; 0 1 1 1 0; 1 1 1 1 1; 0 1 1 1 0; 0 0 1 0 0];
w=imclose(x,SquareMask);
w1=imclose(x,CircleMask);
figure
imshow(w);
figure
imshow(w1);
figure
imshow(a)
x=imread('boats.pgm');
y=imread('lena.pgm');
z=imread('noised2.pgm');
c=imread('noised3.pgm');
a=imread('noised4.pgm');
w=medfilt2(z,[5 5]);
figure
imshow(w);
figure
imshow(z)
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