How can i implement least squares of the difference between 2 matrices?

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Rawan hamdi 2013-4-10

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Hi,

I'm trying to get the least squares of the difference between 2 matrices

argmin |g-u| both g and u are matrices of size [280,307,191]

any help?

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Iman Ansari 2013-4-10

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Error= g-u;
MSE=mean(Error(:).^2)

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Iman Ansari 2013-4-11

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For these u and g what is the answer?

u=[211   103   93;  256   239   16;  96   110   216];
g=[147   38   131;  11    228  112;  158   192   41];
Error= g-u;
SquersError=Error.^2;
LeastSquersError=min(SquersError(:));
Argmin=abs(Error(SquersError==LeastSquersError))

Is 11 the result you want?

Rawan hamdi 2013-4-11

在 MATLAB Online 中打开

i really have no idea what the constrained least squares means! but all i understood is that the term

|| g-u || is  the data fidelity term between these 2 images(matrices) and the whole equation 
x = ||g-u ||.^2 is the constrained least squares
and i'm trying to know what the result should be

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