Design of Adjustable Square-Shaped 2D IIR Filters

Figure 2

(a) Zero-phase low-pass prototype filter characteristic for 𝑝=1(𝜔₀=1); (b), (c) scaled LP characteristics for 𝑝=0.6(𝜔₀=0.53𝜋) and 𝑝=2.7(𝜔₀=0.118𝜋).

(a)

(b)

(c)