Hi,
as far as I can say, you would have to create your own plugin to
import the Fourier transform or Hartley transform (Actually, the
internal format is not a Fourier but a Hartley transform, but these
are similar, and multiplying with a frequency-dependent function can
be done for a FFT as well as a FHT).
But you don't need to import/export the FHT (FFT) data:
If you want to multiply by a frequency-dependent factor, ImageJ has a
function for this: Process>FFT>Custom Filter.
Michael
________________________________________________________________
On 18 Oct 2011, at 00:01, acepler wrote:
> Is there a way to import an image into ImageJ as a frequency domain
> image?
>
> What I would like to do is take a FFT of an image, multiply each
> pixel by a
> certain function, and then take the iFFT to see the result. I can
> take the
> FFT of an image save it as a "Text Image." This allows me to
> multiply each
> pixel by a value (in Excel) and generate a set of values, with I
> can import
> as a new text image. However, if I import this new image back into
> ImageJ,
> it is no longer a frequency domain image.
Locked
