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function [Ps]=psnr(originalImage,embeddedImage)
I=double(originalImage);
B=double(embeddedImage);
MSE=mean(mean((I-B).^2));
MAXI=255; %MAXI is the maximum possible pixel value of the image.
%When the pixels are represented using 8 bits per sample, this is 255.
Ps=10*log10(MAXI^2/MSE);
end
here call function in embedd
Ps=psnr(originalImage,embeddedImage);
disp(Ps);
This error
Error in psnr (line 4)
MSE=mean(mean((I-B).^2));
Error in Embed (line 141)
Ps=psnr(originalImage,embeddedImage);
回答（2 个）
Walter Roberson
2015-5-8
0 个投票
You did not show us what the error message was.
I suspect that your originalImage and your embeddedImage are not the same size()
Reem Al Shehri
2015-5-8
0 个投票
1 个评论
Walter Roberson
2015-5-8
That tells us where the error was, but not what the error was. For example just before that did it say,
"Error in license manager, -97"
or did it say
"Matrix dimensions must agree"
?
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2015-5-8
2015-5-8
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