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SNR between two images in MATLAB

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Franta Cymorek
Franta Cymorek 2019-2-21
评论： Franta Cymorek 2019-2-21
Below is the algorithm for calculating the SNR of two images in MATLAB:
A = imread('Yes_Noise.png');
A = imgaussfilt(A, 2); %Filtered image
ref = imread('Yes_Noise.png'); %Noisy image
test = snr(ref,ref-A)
Is it the algorithm rigth? It's purpose is find out the SNR value between filtered and nosiy image.
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Adam
Adam 2019-2-21
21-02-2019 16-32-34.png
is what the help says, assuming snr is the Matlab Signal Processing Toolbox function. So assuming the difference between the smoothed image and the original is considered noise then yes, subtractubing the filtered image from the original will give this.

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