Performance Evaluation of Noise Reduction Filters for Color Images through Normalized Color Difference (NCD) Decomposition

Table 3

List of CQI, NCD_gau, and NCD_dis evaluations (“Flowers” image corrupted by Gaussian noise and filtered by 3×3 and 5×5 vector mean operators).

Image	CQI	NCDgau (×10^2)	NCDdis (×10^2)
Figure 7(b)	0.744	11.04	4.90
Figure 7(c)	0.744	4.91	7.07