ripa (version 2.0-1)

fftImg: Compute FFT image

Description

This function computates the power spectrum of a given image by FFT.

Usage

fftImg(img)

Arguments

img

target image

Value

• an imagematrix

References

FFTW (Fastest Fourier Transform in the West) http://www.fftw.org

See Also

fftw,imagematrix

Examples

data(logo)
  plot(normalize(fftImg(logo)))