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I write an application on VS-2008 (WinForms, C++) Need a Fast Fourier transformation Library. Can anybody advise a good one?

gaussblurinc
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  • Check out intel MKL (Math Kernel Library) - it has both linear algebra and FFT support – alexm Oct 22 '11 at 17:17
  • You are using .NET so you don't care about the language. http://stackoverflow.com/questions/170394/fast-fourier-transform-in-c-sharp – Hans Passant Oct 22 '11 at 19:35
  • Here is some [sample code](https://software.intel.com/en-us/articles/implementation-of-fast-fourier-transform-for-image-processing-in-directx-10) for DirectX 11. – ChileAddict - Intel Feb 19 '15 at 19:22
  • Probably [this](http://ilnumerics.net/) library will do the job. – Simon Oct 22 '11 at 21:03

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I strongly recommend FFTW over anything else. It is fast, reliable, widely used, portable. Yes, you will have to call from managed code into unmanaged code.

Radim Cernej
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  • FFTW is great if you need peak performance. If not, there seems to be fft source code for .net that comes without FFTW's license restrictions or fairly high fee. – hotpaw2 Oct 23 '11 at 16:42