. Author manuscript; available in PMC: 2022 Jan 1.

Published in final edited form as: SIAM J Imaging Sci. 2021 May 10;14(2):580–619. doi: 10.1137/20M1340654

Table 1:

The PSNR (dB) of the denoised results for the two testing natural images with different noise level.

Img.	σ	DL	NLM	TL	ReLU1	ReLU2	Proposed1	Proposed2

	10	26.63	26.64	27.41	30.29	31.11	30.99	31.19
Man	20	26.11	26.35	27.02	27.47	27.33	27.25	27.63
	100	19.69	20.95	21.65	21.85	22.11	21.91	22.06

	10	27.08	29.08	28.71	28.88	29.27	30.05	30.28
Lighthouse	20	25.51	25.21	25.92	26.25	26.33	26.69	26.74
	100	19.14	20.14	20.15	20.21	20.46	20.35	20.47