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Entropy Scaling image
    compression
8-bit image
7-bit image
6-bit image
5-bit image
4-bit image
3-bit image
2-bit image
8-bit image   2-bit image
xx=imread('C:UsersshumanDesktopBoat.png');
[l,w]=size(xx)
for i=1:l
   for j=1:w

zz=dec2bin(xx(i,j),8);
yy=zz(5:8);
ff(i,j)=16*bin2dec(yy);


hh2(i,j)=64*round(xx(i,j)/64);
hh3(i,j)=32*round(xx(i,j)/32);
hh4(i,j)=16*round(xx(i,j)/16);
hh5(i,j)=8*round(xx(i,j)/8);
hh6(i,j)=4*round(xx(i,j)/4);
hh7(i,j)=2*round(xx(i,j)/2);
   end
end
figure,imshow(xx)
figure,imshow(ff)
figure,imshow(hh2)
figure,imshow(hh3)
figure,imshow(hh4)
figure,imshow(hh5)
figure,imshow(hh6)
figure,imshow(hh7)
THANK YOU

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Scaling compression2