An Edge-Preserved Image Denoising Algorithm Based on Local Adaptive Regularization

Figure 3

Comparison of denoising results by different methods. (The SNR value of this comparison is as follows: noisy image SNR = 7.1122, classical TV denoising SNR = 14.3264, bilateral filter denoising SNR = 14.2720, the proposed method in [4] SNR = 14.6837, and the proposed method in this paper SNR = 14.8013.)

(a) Original Lena image

(b) Noisy image

(c) Classical TV denoising

(d) Bilateral filter denoising

(e) The proposed method in [4]

(f) The proposed method in this paper