calculating energy of an image

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kash
kash 2012-5-31
I have a code for dual tree 3D,in that i want to calculate energy for each subband ,please help how to calculate energy
x = rand(64,64,16);
J = 1;
[Faf, Fsf] = FSfarras;
[af, sf] = dualfilt1;T=10;
w = dualtree3D(x, J, Faf, af);
y = idualtree3D(w, J, Fsf, sf);

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Wayne King
Wayne King 2012-5-31
You can calculate the energy as follows
x = rand(64,64,16);
J = 1;
[Faf, Fsf] = FSfarras;
[af, sf] = dualfilt1;T=10;
w = dualtree3D(x, J, Faf, af);
details = w{1}{1}{1};
energy = sum(abs(details(:)).^2);
w{2}{:}{:} contains the approximation coefficients
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kash
kash 2012-5-31
i get 32 values for each subband,please tell how to plot for it
PRAKASH BHARTI
PRAKASH BHARTI 2012-12-21
what is the unit of above calculated energy please specify

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