FFT Filters

Applies a simple low and high pass filters to an image using NumPy.

Written in a jupyter notebook, only requirements are:

• ipykernel
• pip
• numpy
• pillow
• matplotlib

Better results could be achieved by using a Gaussian filter.

Output

Original image:

Original FFT:

Low Pass

Circular

Filtered image:

Filtered FFT:

Gaussian

Filtered image:

Filtered FFT:

High Pass

Circular

Filtered image:

Filtered FFT:

Gaussian

Filtered image:

Filtered FFT: