[Insight-users] Radionuclides therapy : FFT / FFTW and Licensing

[Luis Ibanez]

Hi Alexander,

Thanks for letting us know that your application
is working well.


I'm guessing that your question refers to Licensing,
is that right ?


If so, the situation is the following:


1) ITK is distributed under an OSI-approved BSD license.

    You are allowed to copy, modify and distribute ITK,
    for any purpose, including commercial purposes.

    You can use ITK in commercial applications without
    having to pay royalties to the Insight Software
    Consortium.


2) The ITK FFT filters can take advantage of the fftw library.

    This library is distributed under the GPL License.
    http://www.fftw.org/fftw2_doc/fftw_8.html

    If you build applications using fftw, then your
    code is considered to be derivative work from fftw
    and you are subject to distribute the source code
    of your application under a GPL license *IF* you
    distribute the application.



It is great that you are now an expert on Fourier analysis,
we look forward to see you assisting other users in the
ITK mailing list   :-)



Please let us know if you have further questions,



    Thanks


       Luis



-------------------------
alexandre govignon wrote:
> Hi all,
> 
> first thank you Mathieu and Luis for your help. My convolution  in the
> filtering domain works well in my application.
> 
> 
> My project is an application for radionuclidestherapy dosimetry.
> 
> So,  i need to know all the considerations about the FFT in ITK. In
> which conditions this FFT are available.
> 
> Thank you for reply.
> 
> PS: now i am an expert of the convolution in itk, if somebody needs
> help i can be a good consultant. :-)
> 
> 
> --
> Kind regards,
> Alexandre Govignon.
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