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radial_fourier_spectrum

fpm_rs::metrics::complex_field::statistics

Function radial_fourier_spectrum 

Source 
pub fn radial_fourier_spectrum(
    field: &Array2<Complex64>,
) -> Result<RadialFourierSpectrum>
Expand description

Calculate the radial Fourier power spectrum of a two-dimensional complex field.

This applies a forward FFT, treats DC as the centre of the Fourier grid, and averages normalized power over annular bins with integer Fourier-pixel radius.