Fourier Transform

Fourier transform helps to increase the resolution of images and reduce noises of images. To implement Fourier transform:

  1. Implement Fast Fourier Transform to transform gray scaled imaged into frequency.
  2. Visualize and centralize zero-frequency component.
  3. Apply low/high pass filter to filter frequencies.
  4. Decentralize.
  5. Implement inverse Fast Fourier Transform to generate image data.

numpy.fft: implement fft operation.

Posted on July 17, 2021 Tags: