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Plz explain this code ? why is the loop required , and how parameters are restricted in the 4th last line of the code ?

1 次查看(过去 30 天)
if true
% code
x=0:255;
for i=1:20
if i==1;y=x;
else x=[x;y];
end
end
p= 100*ones(16,200)
x(28:27+16,29:28+200)=p;
imshow(uint8(p))
figure, imshow(uint8(x))
end

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