Fourier transform helps to increase the resolution of images and reduce noises of images. To implement Fourier transform:
- Implement Fast Fourier Transform to transform gray scaled imaged into frequency.
- Visualize and centralize zero-frequency component.
- Apply low/high pass filter to filter frequencies.
- Implement inverse Fast Fourier Transform to generate image data.
numpy.fft: implement fft operation.
Posted on July 17, 2021 Tags: