[Insight-users] bandpass filter in ITK

[Dan Mueller]

Hi,

No, I don't think this is the same. The description you give would
remove specific frequencies. The approach I gave deals with intensity
only.

Cheers, Dan

On 24 January 2012 19:09, barbababa <tonimuusimaki at gmail.com> wrote:
>
> Hello!
>
> Yes i guess that is correct. In my understanding one takes the fft of the
> image, applies a mask shaped
> like a donut, with inner ring defining the lower cutoff and outer ring the
> high cutoff untill the nyquist limit. Everything lower and higher than these
> will be cut off.
> And then the inverse fft.
>
> Is this the same?