2/24/22 9:49 PM
C:\Users\benit\Downloads\scirpt.m
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%%
clc;
%This is for the image values
inImage =uint8([0 255 0;0 0 0; 0 0 0])
%inImage =uint8
([255,255,255,255,255,255,255,243,210,156,121,111,110,111,122,157,209,244,254,255,255
,255,255,255,255,255,255,255,255,255,254,243,210,155,122,111,110,111,111,112,122,156,
210,243,254,255,255,255,255,255;
255,255,255,255,255,255,253,240,194,123,76,62,61,62,77,122,195,239,253,255,255,255,25
4,255,255,255,255,255,255,255,253,240,193,123,77,62,61,61,61,62,76,122,194,240,254,25
5,255,255,255,255;
255,255,255,255,255,255,253,238,190,111,62,48,47,48,62,112,189,239,254,255,255,255,25
5,255,255,255,255,255,255,255,253,238,190,112,62,48,46,46,46,48,62,111,190,238,252,25
4,255,255,255,255;
255,255,255,255,255,255,253,238,189,111,62,46,44,47,61,111,189,239,253,255,255,255,25
5,255,255,255,255,255,255,255,253,238,189,110,61,47,44,44,45,47,61,110,189,238,253,25
5,255,255,255,255;
255,255,255,255,255,255,253,239,189,111,61,47,45,46,61,110,189,238,253,255,255,255,25
5,255,255,255,255,255,255,255,253,238,189,110,61,46,44,44,45,46,61,110,189,238,253,25
5,255,255,255,255;
255,255,255,255,254,255,253,238,189,111,61,46,44,46,61,110,189,239,253,255,255,255,25
5,255,255,255,255,255,255,255,253,238,189,110,61,46,45,45,44,46,61,110,189,238,253,25
5,255,255,255,255;
255,255,255,255,255,255,253,238,189,111,61,46,44,46,61,110,189,239,253,255,255,255,25
5,255,255,255,255,255,255,255,253,238,189,110,61,47,45,44,44,47,61,110,189,238,253,25
5,255,255,255,255;
254,253,253,253,253,253,251,237,188,109,61,47,45,46,61,110,188,236,251,253,253,253,25
3,253,253,253,253,253,253,253,251,237,188,110,61,46,44,45,45,47,61,110,188,237,252,25
3,253,253,253,254;
243,241,238,239,238,238,236,223,178,105,60,46,44,46,60,105,177,224,236,238,239,238,23
9,238,238,238,238,238,238,238,236,223,178,105,61,46,45,45,45,47,60,105,178,223,236,23
8,239,238,240,243;
211,195,190,189,188,189,187,178,143,90,56,45,44,45,56,90,144,178,187,189,189,189,189,
189,189,189,189,189,189,189,187,178,143,90,56,45,45,44,44,46,56,90,143,177,187,189,18
9,189,195,210;
157,123,113,112,111,112,111,106,91,66,50,46,45,45,50,66,90,107,112,112,112,112,111,11
2,112,112,112,111,112,112,111,106,91,66,49,45,45,44,44,45,49,65,91,107,112,112,112,11
3,123,157;
133,91,79,78,77,77,77,75,67,55,47,45,44,45,47,55,67,75,77,77,77,77,77,77,77,77,77,77,
78,77,77,75,67,55,48,45,45,44,44,44,48,55,67,75,76,77,77,79,92,132;
156,123,113,112,112,112,112,107,91,66,50,45,44,45,49,66,91,107,111,112,112,112,112,11
2,112,112,112,112,112,112,112,107,91,65,49,45,44,45,44,45,49,65,90,107,111,112,112,11
3,122,157;
210,194,189,189,189,189,188,178,144,91,56,45,44,45,56,90,144,177,187,189,189,189,189,
189,189,189,189,189,189,189,187,178,144,90,56,46,44,45,44,46,56,90,143,178,188,189,18
9,190,195,210;
244,240,238,238,238,238,236,223,178,105,60,47,45,46,60,105,178,223,237,239,238,238,23
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C:\Users\benit\Downloads\scirpt.m
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8,238,238,238,238,239,239,239,236,223,177,105,59,46,45,45,45,46,60,105,178,223,237,23
8,238,239,241,243;
254,254,252,253,253,253,250,237,188,109,61,46,44,47,61,110,188,237,251,253,253,253,25
3,253,253,253,252,253,253,253,252,237,188,109,61,47,44,44,45,46,61,109,188,236,251,25
3,253,253,253,254;
255,255,255,255,255,255,253,238,189,110,61,46,44,46,61,110,189,238,253,255,255,255,25
5,254,255,255,255,255,255,255,253,238,188,110,61,46,44,44,44,46,61,110,189,238,253,25
5,255,255,255,255;
255,255,255,255,255,255,253,238,190,111,61,46,44,46,61,110,189,238,253,255,255,255,25
5,255,255,255,255,255,255,255,253,239,189,110,61,46,44,44,45,47,62,110,189,238,253,25
5,255,255,255,255;
255,255,255,255,255,255,253,238,189,110,61,47,44,46,61,111,189,238,253,255,255,255,25
5,255,255,255,255,255,255,255,253,239,189,110,61,46,44,45,44,46,61,110,189,238,253,25
5,255,255,255,255;
255,255,255,255,255,255,253,238,189,111,61,47,44,46,61,111,189,238,253,255,255,255,25
5,255,255,255,255,255,255,255,253,238,189,111,61,46,44,45,44,46,61,110,189,239,253,25
5,255,255,255,255;
255,255,255,255,255,255,253,238,188,110,61,47,45,46,61,110,190,239,253,255,255,255,25
5,255,255,255,255,255,255,255,253,239,189,111,61,47,44,44,44,46,61,110,189,238,253,25
5,255,255,255,255;
255,255,255,255,255,255,253,238,189,110,61,47,45,47,61,110,189,238,254,255,255,255,25
5,255,255,255,255,255,255,255,253,239,189,110,61,47,45,44,44,47,61,110,189,238,253,25
5,255,255,255,255;
254,253,252,253,253,253,251,237,187,110,61,46,44,47,61,110,188,237,251,253,253,253,25
3,253,253,253,253,253,253,253,251,237,187,110,61,46,44,44,44,46,61,110,188,237,251,25
3,253,253,253,254;
243,240,238,238,238,238,236,223,178,105,60,47,44,47,60,106,178,224,236,238,239,238,23
8,238,238,238,238,238,239,239,236,222,178,105,60,47,44,45,45,46,60,105,178,223,236,23
8,238,238,240,243;
209,195,190,189,189,189,188,178,143,90,56,46,45,45,56,89,144,178,188,188,189,189,189,
189,189,189,189,189,189,189,188,178,143,90,56,46,44,45,44,45,56,91,144,177,188,189,18
9,190,195,210;
156,122,112,111,110,110,110,105,90,65,50,45,45,45,49,66,89,105,110,111,111,110,111,11
1,110,111,111,110,110,110,110,105,90,64,50,46,44,44,45,45,49,65,90,105,110,110,110,11
1,121,156;
123,76,63,61,61,62,61,59,55,49,46,44,44,45,46,49,56,59,61,61,61,62,61,61,61,61,61,61,
61,61,61,60,55,49,45,44,44,44,45,44,45,49,55,59,61,62,61,62,76,122;
111,63,48,46,46,47,47,46,46,45,44,44,44,44,45,45,45,46,47,46,46,47,46,47,47,46,46,46,
47,46,46,46,46,46,44,44,45,44,45,45,44,45,46,46,47,47,46,47,62,111;
111,62,46,45,45,44,44,44,44,45,45,45,45,44,45,44,45,45,45,45,44,44,44,45,45,44,44,44,
44,44,44,44,44,44,44,45,45,44,44,45,44,45,44,44,44,44,45,47,61,111;
111,61,47,45,45,45,44,44,44,44,45,44,44,45,45,45,44,44,44,45,45,45,45,44,45,45,44,45,
44,44,44,44,45,44,44,45,44,45,44,45,44,44,44,44,44,44,45,46,61,110;
110,61,47,44,44,45,45,44,45,44,44,45,45,45,44,44,44,44,45,44,44,45,45,44,44,45,44,45,
44,44,44,45,44,44,45,45,44,44,44,45,45,44,44,45,44,45,45,47,61,110;
110,61,46,44,45,44,44,45,45,45,44,44,44,44,45,45,44,44,45,44,45,44,44,45,44,45,44,44,
45,44,44,44,44,44,44,45,44,45,44,44,45,44,44,44,44,45,44,47,61,110;
110,61,46,45,44,44,44,45,44,44,44,44,44,44,45,44,45,45,44,44,44,44,44,44,45,44,44,44,
44,44,44,44,45,44,45,44,44,45,44,45,44,44,44,44,44,44,44,47,61,111;
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C:\Users\benit\Downloads\scirpt.m
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110,61,46,44,44,45,44,44,44,44,45,44,45,45,45,44,44,44,44,44,44,44,44,44,44,44,44,44,
44,45,45,45,45,44,44,45,45,44,44,45,45,45,45,44,44,44,44,46,61,111;
111,61,46,44,44,44,44,44,45,44,44,45,45,44,44,44,44,44,45,45,45,45,44,44,44,44,45,44,
44,45,45,45,45,45,44,44,44,45,45,44,45,44,44,44,44,44,45,46,61,111;
111,61,46,45,44,44,45,45,45,45,44,44,44,45,45,44,44,44,44,44,44,44,45,45,44,44,44,44,
45,45,44,44,44,45,45,45,45,45,44,45,45,45,45,44,45,45,45,46,61,111;
110,61,47,45,44,44,45,44,44,45,44,45,45,44,45,44,45,44,45,45,44,44,44,44,44,44,44,45,
45,45,45,45,45,45,44,44,44,44,44,45,44,45,45,44,44,44,44,46,61,110;
112,62,47,47,47,46,47,46,46,45,45,45,45,44,45,45,46,46,46,47,47,46,46,46,46,46,46,47,
46,46,47,46,45,45,45,44,44,45,44,44,45,45,45,46,47,47,46,47,62,112;
122,77,62,62,62,61,61,59,55,49,46,45,44,45,45,49,55,60,61,61,61,61,61,61,61,61,61,62,
61,61,61,59,56,49,46,45,44,45,45,45,46,50,56,59,60,61,62,62,76,123;
156,121,112,110,110,110,110,105,90,65,49,45,45,45,49,65,90,104,110,110,111,110,111,11
0,111,111,111,111,110,111,110,105,89,65,49,45,44,45,44,46,49,66,89,105,110,110,111,11
2,121,156;
209,196,189,189,189,189,188,178,143,90,56,45,44,45,56,90,143,179,187,189,189,189,189,
189,189,189,189,189,189,189,188,178,144,89,56,45,44,45,45,46,56,90,145,177,187,189,18
9,190,195,210;
244,240,239,238,238,239,237,223,178,106,60,46,45,47,60,106,179,223,236,239,238,238,23
8,238,238,238,238,238,239,238,236,224,177,106,60,46,45,44,44,47,60,106,177,223,237,23
8,238,238,240,244;
253,253,253,253,253,253,251,236,188,109,61,46,45,48,61,110,187,236,252,253,253,253,25
3,253,253,253,253,253,253,254,251,236,188,110,60,46,44,44,44,46,61,110,188,236,250,25
2,253,253,253,254;
255,255,255,255,255,255,252,239,189,111,62,46,44,46,61,111,189,239,253,254,255,255,25
5,255,255,255,255,255,255,255,253,238,188,110,61,47,44,45,45,46,61,111,189,239,253,25
5,255,255,254,255;
254,255,255,255,255,255,253,238,189,111,61,47,45,46,61,110,189,238,253,255,255,255,25
5,255,255,255,255,255,255,255,253,239,189,110,61,46,44,45,45,47,61,111,189,238,253,25
5,255,255,255,255;
255,255,255,255,254,255,253,238,189,111,61,46,44,47,61,110,189,238,253,255,255,254,25
5,255,255,255,255,255,255,255,253,238,189,110,61,46,45,45,44,46,61,111,189,239,253,25
5,255,255,255,255;
255,255,255,255,255,255,253,238,189,110,61,46,44,46,61,111,189,238,253,255,255,255,25
5,255,255,255,255,255,255,255,253,238,189,111,61,46,44,45,45,46,61,111,189,238,253,25
5,255,255,255,255;
255,255,255,255,255,255,253,239,190,111,62,48,46,48,62,111,189,238,253,255,255,255,25
5,255,255,255,255,255,255,255,254,239,190,112,62,47,46,46,46,48,63,111,189,238,253,25
5,255,255,255,255;
255,255,255,255,255,255,253,240,194,122,76,62,61,62,76,122,194,240,253,255,255,255,25
5,255,255,255,255,255,255,255,253,240,194,123,76,62,61,61,61,62,76,122,194,240,253,25
5,255,255,255,255;
255,255,255,255,255,255,254,243,210,156,121,111,111,112,122,156,209,243,254,255,255,2
55,255,255,255,255,255,255,255,255,254,243,210,156,122,112,110,110,111,111,121,156,21
0,243,254,255,255,255,255,255]);
outImage = halftone(inImage);
subplot(121)
2/24/22 9:49 PM
C:\Users\benit\Downloads\scirpt.m
imshow(inImage)
subplot(122)
imshow(outImage)
%%
function outImage = halftone(inImage)
[m,n] = size(inImage);
% for making image size multiple of 3
mp = ceil(m/3)*3;
np = ceil(n/3)*3;
% inImage = [inImage; zeros()]
Image = 255*ones(mp,np);
Image(1:m,1:n) = inImage;
%% Pattern blocks
s =3; % block size
number = zeros(s,s,s*s+1); % Note: pattern numbers are from 1 to 10
number(:,:,1) = zeros(3);
number(:,:,2) = [0 255 0;0 0 0; 0 0 0];
number(:,:,3) = [0 255 0;0 0 0; 0 0 255];
number(:,:,4) = [255 255 0;0 0 0; 0 0 255];
number(:,:,5) = [255 255 0;0 0 0; 255 0 255];
number(:,:,6) = [255 255 255;0 0 0; 255 0 255];
number(:,:,7) = [255 255 255;0 0 255; 255 0 255];
number(:,:,8) = [255 255 255;0 0 255; 255 255 255];
number(:,:,9) = [255 255 255;255 0 255; 255 255 255];
number(:,:,10)= [255 255 255;255 255 255; 255 255 255];
%%
%processing the images in the matrix
upImage = zeros(m,n);
% Dividing the image and then assigning it to the correct region
pnm = zeros(m,n);
for i=1:mp/3
for j=1:np/3
avgInImage = mean(mean(Image((i*3-2):(i*3),(j*3-2):(j*3))));
% pattern number corresponding to pixels
pattern = ceil(avgInImage/(256/(s*s+1)));
upImage((i*3-2):(i*3),(j*3-2):(j*3)) = number(:,:,pattern);
end
end
upImage = uint8(upImage);
outImage = upImage(1:m,1:n);
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2/24/22 9:49 PM
end
C:\Users\benit\Downloads\scirpt.m
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