PSNR of image
2016-11-30
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function psnr= PSNR(X,Y)
%Calculates the Peak-to-peak Signal to Noise Ratio of two images X and Y
[M,N]=size(X);
m=double(0);
X=cast(X,'double');
Y=cast(Y,'double');
for i=1:M
for j=1:N
m=m+((X(i,j)-Y(i,j))^2);
end
end
m=m/(M*N);
psnr=10*log10(255*255/m);
%Calculates the Peak-to-peak Signal to Noise Ratio of two images X and Y
[M,N]=size(X);
m=double(0);
X=cast(X,'double');
Y=cast(Y,'double');
for i=1:M
for j=1:N
m=m+((X(i,j)-Y(i,j))^2);
end
end
m=m/(M*N);
psnr=10*log10(255*255/m);
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