"Nasser Abbasi" <nma@[EMAIL PROTECTED]
> wrote in message
news:a%x8k.9780$xZ.8316@[EMAIL PROTECTED]
> hello;
>
> I have 2 images (of same size), both gray levels. Say A and B. B is a
> modified version of A, and I'd like to measure how far B is from A.
>
> I currently use RMSE and also use relative error,absolute error and
> histogram difference. But I 'like' RMSE the most so far.
>
> Is there a better method to quantify, in one number, the difference
> between 2 images that I am overlooking ?
>
> thanks,
> Nasser
Thanks to all who replied.
fyi, I also found 'peak SNR'. Which is, from wikipdia
"The PSNR is most commonly used as a measure of quality of reconstruction
in
image compression etc. "
http://en.wikipedia.org/wiki/PSNR
Nasser
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