Dual-Core Adaptive NLM Image Denoising Algorithm Based on Variable-Size Window and Neighborhood Multifeatures

Table 1

PSNR (dB) table for different simulation results.

Image		Noisy image	Traditional NLM	Gaussian kernel NLM	Literature [12] method	Literature [13] method	Literature [14] method	Literature [15] method	Algorithms in this paper
Jetplane	20	22.57	28.12	28.45	28.77	29.25	29.56	30.45	30.38
	40	17.26	26.32	26.65	26.92	27.25	27.52	28.15	28.57
	60	15.37	23.12	24.45	24.72	25.25	25.42	25.75	26.81
C.man	20	22.68	25.45	26.88	26.95	27.28	28.45	28.88	28.72
	40	17.39	23.21	23.52	24.31	24.62	25.61	26.32	26.88
	60	15.48	22.47	22.61	23.37	23.71	24.47	24.71	25.14
Boat	20	22.32	27.21	27.78	28.21	28.78	29.21	29.78	28.62
	40	17.29	24.21	24.83	25.21	25.83	26.21	26.83	27.56
	60	15.61	22.73	23.32	23.73	24.32	24.73	25.32	25.58
Lax	20	22.64	24.12	24.63	25.12	25.83	26.72	27.23	27.06
	40	17.43	23.21	23.72	24.21	24.82	25.21	25.98	26.42
	60	15.26	20.21	21.63	22.41	22.73	23.21	23.83	24.12
Lena	20	22.49	29.06	29.32	29.75	29.98	30.04	30.13	31.15
	40	17.98	24.03	24.67	25.31	25.92	26.36	26.89	26.69
	60	15.67	22.23	23.28	23.85	24.36	24.82	25.27	25.84
Peppers	20	22.71	28.96	29.18	29.69	29.75	30.15	30.42	30.12
	40	17.42	24.15	24.36	25.27	25.74	26.18	26.91	27.82
	60	15.26	23.01	23.41	23.26	24.29	24.75	25.31	25.61