Crate freqshow 

A library for converting images to and from the 2D frequency domain via FFT.

Example

use freqshow::{FreqImage, Complex};

// Create a small 4x4 image from raw complex data.
let data: Vec<Complex<f64>> = (0..16)
    .map(|i| Complex::new(i as f64 / 16.0, 0.0))
    .collect();
let mut fi = FreqImage { width: 4, height: 4, data };

// Forward FFT, inspect spectrum, then inverse FFT.
fi.fft_forward();
let spectrum = fi.fftshift();
let _vis = spectrum.view_fft_norm();
fi.fft_inverse();

// Pixel values are recovered (within floating-point tolerance).
assert!((fi.data[0].re - 0.0).abs() < 1e-10);

Re-exports

pub use freq::FreqImage;

Modules

freq

Core FFT image processing types and operations.

Structs

Complex

A complex number in Cartesian form.