[Insight-users] PSNR

[Karthik Krishnan]

On 3/26/08, Fab_83 <Fabian_Eisa at gmx.de> wrote:
>
>
> Hi everybody,
>
> I want to use Peak Signal noise ratio


ITK has an MSE metric and you could compute the PSNR from that.

PSNR is almost equivalent to MSE, except that its nicer (cause its dynamic
range invariant :) )

PSNR = 20*log10( 255 /MSE)

the units being dB.

That's for an UCHAR image. For CT, you should replace 255 with 4095.

and sum of absolut distance as a
> metric for CT-Registration.


As Luis suggested you should write your own metric for this.

HTH
--
karthik
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