how to know the meaning of MSE and PSNR value?
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i try to use MSE and PSNR built in function and i got this value
mse = 0.1200 peaksnr = 9.2078
and if i not not use im2double i got this
mse = 7.8273e+03
want the meaning of this value ?
ref=im2double(rgb2gray(imread('dogs.jpg')));
A = imnoise(ref,'salt & pepper', 0.4);
err = immse(A, ref);
peaksnr = psnr(A,ref);
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