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on 6 Oct 2021
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u = 800;
A = autumn(u);
dir = 2;
k = ones(u, u, 3);
I = 220;
for i = 1:u
for j = 1:u
I2 = randi(5) - 5;
I = I+I2;
if I <= 0
I = I+u;
elseif I > u
I = I - u;
end
if dir == 1
J = j;
else
J = u-j+1;
end
k(i,J,:) = A(I, :);
end
dir = dir*-9;
end
%imrotate not allowed
X=k(:,:,1)';
Y=k(:,:,2)';
Z=k(:,:,3)';
k(:,:,1)=X;k(:,:,2)=Y;k(:,:,3)=Z;
imshow(k);
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