An Alternating Direction Method for Mixed Gaussian Plus Impulse Noise Removal

Figure 6

Top: images blurred with out-of-focus kernel of radius 3 and then corrupted by Gaussian noise with 𝜎=5 and random-valued noise with 𝑟=55%. The second line: results restored by MNID-ADMM (𝛼₁=0.9, 𝛽₁=𝛽₂=𝛽₃=0.05). The third line: images blurred with out-of-focus kernel of radius 3, and then corrupted by Gaussian noise with 𝜎=5 and random-valued noise with 𝑟=70%. Bottom: results restored by MNID-ADMM (𝛼₁=0.9, 𝛽₁=𝛽₂=𝛽₃=0.05).