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

Figure 1

Denoising comparison of salt and pepper noisy image. (The SNR value of this comparison is as follows: noisy image SNR = 8.1867, classical TV denoising SNR = 15.2426, bilateral filter denoising SNR = 15.0410, the proposed method in [4] SNR = 15.7141, and the proposed method in this paper SNR = 15.9832.)

(a) Original 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