Background removal using Fourier Transform
Switch branches/tags
Nothing to show
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Failed to load latest commit information.


Background removal using Fourier Transform

This handy python script takes a FITS image, perform Fourier transform, and separate low- and high-spatial frequency components by a user-specified cut. Both components are then inverse FT back to image domain. It can be used to remove large-scale background/foreground emission in many astrophysical applications.

Input: original FITS image Outputs: background and structure images

If you find this script useful, please cite our paper: Large-scale filaments associated with Milky Way spiral arms.