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What does this code compute?

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Anushka
Anushka 2015-2-13
编辑： Image Analyst 2015-2-14
what does this code compute? mask ( inside ) = ones ( size ( inside ) )

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Titus Edelhofer
Titus Edelhofer 2015-2-13
It set's all entries in mask, where inside is true, to one. I guess
mask(inside) = 1;
should do the same in fact.
Titus
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Anushka
Anushka 2015-2-13
Thank you sir for your kind response
Anushka
Anushka 2015-2-13
编辑：Image Analyst 2015-2-14
d = size(img); % dimension
img = double(img);
%---------- Normalize co-ordinates to [-sqrt2,sqrt2] (centroid assumed @ origin)
xstep = 2/(d(1)-1);
ystep = 2/(d(2)-1);
[x,y] = meshgrid(-1:xstep:1,-1:ystep:1);
Sir can you please explain this too.

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