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on 15 Oct 2021
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%optical illusion Sink
s=200;
I=ones(s,s);
w=150;
d=w/s;
n=48;
a=2*pi/n;
r=cos(a)+i*sin(a*(1.05));
b=0.5;
for h=1:s
for k=1:s
z=(h-s/2)*d+i*(k-s/2)*d;
w=0;
for t=1:n
w=w+sin(real(z));
z=r*z;
end
I(h,k)=max(0,min(w/b/2+0.5,1));
end
end
imshow(I,[])
colormap autumn
view(0,90)
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