Mean square error of two matrices
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Anurag Pujari
il 1 Apr 2013
Modificato: Lorson Blair
il 2 Apr 2022
How to calculate the mean square error of two matrices? How to use the inbuilt MATLAB function msc for that?The Mathworks help for mse is not clear to me.
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Wayne King
il 1 Apr 2013
Do you have the Wavelet Toolbox? If so, you can use measerr(), otherwise, suppose your original matrix is X and your approximation is Xapp
X = randn(256,256);
Xapp = randn(256,256);
D = abs(X-Xapp).^2;
MSE = sum(D(:))/numel(X);
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Lorson Blair
il 2 Apr 2022
Modificato: Lorson Blair
il 2 Apr 2022
For persons who still have questions about this, you can use the Frobenius norm:
A = randi(10,3);
B = randi(25,3);
MSE = norm(A-B,'fro')^2/numel(A);
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