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fftpack

How to import a java package in Android Studio

I'm new in android, and I want to import the jfftpack to my project in android studio anda i don't know how to import it. The original code was import ca.uol.aig.realdoublefft and I'don't know where to put the java files. I've tried to put them to a libs folder. here's the jfftpack source code:

2021-06-13 11:26:21    分类:问答    java   android   import   android-studio   fftpack

How to multiply two 2D RFFT arrays (FFTPACK) to be compatible with NumPy's FFT?

I'm trying to multiply two 2D arrays that were transformed with fftpack_rfft2d() (SciPy's FFTPACK RFFT) and the result is not compatible with what I get from scipy_rfft2d() (SciPy's FFT RFFT). The image below shares the output of the script, which displays: The initialization values of both input arrays; Both arrays after they were transform with SciPy's FFT implementation for RFFT using scipy_rfft2d(), followed by the output of the multiplication after its transformed backwards with scipy_irfft2d(); The same things using SciPy's FFTPACK implementation for RFFT with fftpack_rfft2d() and

2021-03-30 04:08:22    分类:问答    python   scipy   fft   numpy-ndarray   fftpack