An Alternative Variational Framework for Image Denoising

Table 2

Numerical results for Lena image (300×300) experiments.

Algorithm	Parameters			Number of steps	CPU time (sec)	PSNR	MAE	SSIM	PSNRE
	𝜎	𝐾	𝜏
PM	30	5	0.25	113	0.45	25.94	12.88	0.6939	20.69
TV	30		0.25	129	1.15	27.75	10.45	0.7698	20.70
D-𝛼-PM	30	4	2	10	0.50	28.15	7.21	0.7780	24.57
Our method	30	0.1	5	15	1.07	27.84	10.20	0.7805	26.34