Poisson Noise Removal Scheme Based on Fourth-Order PDE by Alternating Minimization Algorithm

Figure 1

Recovered results of different models by different numerical algorithms.

(a) Original image

(b) Degenerated image

(c) 460 iterations by GD-(1.2)

(d) 280 iterations by GD-(1.4)

(e) 45 iterations by AM-(3.4)