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

Table 5

List of MSE_A, MSE_B, NCD_gau, and NCD_dis values (“Boat” image corrupted by Gaussian noise with 𝜎=20 and filtered by (2𝑁+1)×(2𝑁+1) vector mean operators).

𝑁	MSEA	MSEB	NCDgau (×10^2)	NCDdis (×10^2)
2	21.59	32.31	3.83	6.44
3	32.16	45.20	2.24	7.37
4	41.79	54.94	1.44	8.20
5	50.34	62.14	1.00	8.94