Spatial Images Feature Extraction Based on Bayesian Nonlocal Means Filter and Improved Contourlet Transform

Table 1

PSNR results.

Noise σ				PSNR (dB)
		Noisy	Original	Curvelet	Contourlet	CT+NLM
10	Image I	31.22	32.93	33.01	33.58	34.62
	Image II	32.98	33.53	33.89	34.21	35.40
20	Image I	31.16	31.89	32.75	33.01	34.19
	Image II	32.49	33.14	33.19	33.82	34.89
30	Image I	30.78	31.56	32.13	32.78	33.76
	Image II	31.98	32.75	32.82	33.21	34.17
40	Image I	30.56	31.01	31.74	32.53	33.61
	Image II	31.20	32.11	32.42	32.91	33.98
50	Image I	29.88	30.54	31.29	31.74	32.83
	Image II	30.77	31.56	31.98	32.17	33.28