Enhancing Image Denoising Performance of Bidimensional Empirical Mode Decomposition by Improving the Edge Effect

Table 1

Peak signal to noise ratios (PSNRs) of the noisy and denoising images.

Noise type	Before denoising		Wiener method		The proposed approach		Free of edge treatment		Edge treatment by; mirror expansion
	MSE	PSNR	MSE	PSNR	MSE	PSNR	MSE	PSNR	MSE	PSNR
Gaussian white noise	616.07	20.23	373.65	22.41	191.32	25.31	204.40	24.03	256.88	23.03
Salt and pepper noise	975.80	18.24	398.16	22.13	62.49	30.17	99.96	28.13	137.25	26.76
20% random noise	400.43	22.11	100.95	28.09	3.97	42.15	15.98	36.09	16.81	35.88