Figure 3
From: On required accuracy of mixed noise parameter estimation for image enhancement via denoising
The fragment of noise-free test image #13 and filtered results for accurate and erroneous estimates. The fragment of noise-free test image #13 (a), its noisy (k = 0.2; = 50) (b) version for red component and filtered results for accurate estimates (δ V = 0; δ k = 0) (c) and for erroneous estimates (δ V = 0.4; δ k = 0.3) (d) of the noise parameters.