6731 20240205140343.0 doi:10.1007/s11207-023-02183-w DOI SCART-2024-0066 Seaton, Daniel B. The SWAP Filter: A Simple Azimuthally Varying Radial Filter for Wide-Field EUV Solar Images 2023 We present the SWAP Filter: an azimuthally varying, radial normalizing filter specifically developed for EUV images of the solar corona, named for the Sun Watcher with Active Pixels and Image Processing (SWAP) instrument on the Project for On-Board Autonomy 2 (PROBA2) spacecraft. We discuss the origins of our technique, its implementation and key user-configurable parameters, and highlight its effects on data via a series of examples. We discuss the filter's strengths in a data environment in which wide field-of-view observations that specifically target the low signal-to-noise middle corona are newly available and expected to grow in the coming years. STCE PROBA2 SWAP corona image processing Berghmans, David Bloomfield, D. Shaun De Groof, Anik D'Huys, Elke Nicula, Bogdan Rachmeler, Laurel A. West, Matthew J. Solar Physics 298 2023 7 id.92 david.berghmans@ksb-orb.be https://link.springer.com/article/10.1007/s11207-023-02183-w https://ui.adsabs.harvard.edu/abs/2023SoPh..298...92S/abstract published in REFERD