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  • Users: norpoth
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  1. norpoth

    Low-pass filtering via FFTW: wrong scaling

    Dear members, in order to convolve a greyscale image with a gaussian I used FFTW code (release 3.1.1) to work in fourier domain. In detail my initial data is lying on a 1000x10000 point grid, correspondingly I put the gaussian bell on a 1000x1000 grid too. The gaussian distribution is normalized...
  2. norpoth

    Low-pass filtering via FFTW: wrong scaling

    Dear members, in order to convolve a greyscale image with a gaussian I used FFTW code (release 3.1.1) to work in fourier domain. In detail my initial data is lying on a 1000x10000 point grid, correspondingly I put the gaussian bell on a 1000x1000 grid too. The gaussian distribution is normalized...

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