Removal of Salt and Pepper Noise in Corrupted Image Based on Multilevel Weighted Graphs and IGOWA Operator

Table 3

Comparison of restorations in PSNR(dB) for Boat image.

Methods	Noise density
	10%	20%	30%	40%	50%	60%	70%	80%	90%
PSNR values (dB)
NAFSMF	35.19	32.64	30.72	29.28	28.00	26.57	24.34	22.69	21.02
MDBUTMF	35.56	32.88	30.88	28.91	27.06	25.19	23.39	21.72	19.88
AWMF	36.42	34.71	33.17	31.77	30.24	28.97	27.54	25.78	23.81
FSMMF	36.43	34.47	32.82	30.76	29.20	27.54	25.85	23.9	22.00
LGF	37.06	35.11	33.12	31.26	29.83	28.13	26.53	24.62	22.80
ANCLPVMF	36.37	34.62	33.18	31.09	29.37	28.01	26.99	25.34	23.48
Proposed	39.68	36.72	34.36	32.55	31.02	29.73	28.20	26.39	24.12