How to calculate spatial frequencies in fft2 of an image
24 views (last 30 days)
Show older comments
I apply fft2 on an image and get amplitudes for each spatial frequency. But what are these frequencies? How can I calculate them, knowing the size of the image in pixels and the dimension of the area in km shown on the image? I need to get these frequencies as cycles per km. Thank you.
0 Comments
Answers (1)
See Also
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!