A general structure using a cascade of two stages with digital all-pass filters (DAFs) for designing two-dimensional (2-D) recursive circularly symmetric digital low-pass filters (CS-DLFs). The first stage is a parallel connection of a 2-D DAF and a 2-D pure delay block. The second stage uses a parallel connection of a 1-D DAF and a 1-D pure delay block. Design results with nearly circularly-symmetric magnitude response and approximately linear phase can be achieved satisfactorily