Write a MATLAB code to perform the zooming and shrinking operation by integer factor.

00:33:00  ,  


CODE (FOR ZOOMING):
clear all;
close all;
clc;
b=imread('cameraman.tif');
s=size(b);
c=[];
d=[];
zoom=input('enter zooming factor');

for n=1:s(1,1)
    for p=1:zoom
        c=[c;b(n,:)];
    end
end


for m=1:s(1,2)
    for p=1:zoom
        d=[d,c(:,m)];
    end
end

imshow(d);

  
OUTPUT:
 


CODE (FOR SHRINKING):
clear all;
close all;
clc;
b=imread('cameraman.tif');
s=size(b);
c=[];
d=[];
zoom=input('enter zooming out factor');

for n=1:zoom:s(1,1)
 
        c=[c;b(n,:)];
end
 
for m=1:zoom:s(1,2)
   
        d=[d,c(:,m)];
end
imshow(d);
title('after zooming out');
         
OUTPUT: