Patch Similarity Modulus and Difference Curvature Based Fourth-Order Partial Differential Equation for Image Denoising

Table 3

The MAE, PSNR, and MSSIM values of various methods for Barbara image at different noise levels.

Denoising methods
	MAE	PSNR/dB	MSSIM	MAE	PSNR/dB	MSSIM	MAE	PSNR/dB	MSSIM
Noisy image	7.9627	28.1610	0.7422	11.9505	24.6465	0.6106	15.9890	22.0845	0.5066
PM model	6.0790	29.9197	0.8618	7.6116	27.7438	0.7993	9.0417	26.0634	0.7375
YK model	5.7985	30.0974	0.8773	7.6439	27.5361	0.8092	9.1516	25.9920	0.7442
SGH model	5.5704	29.9815	0.8858	7.4781	27.3245	0.8034	8.7029	26.1157	0.7589
AFOD filter	5.5062	30.1102	0.8899	7.1269	27.7870	0.8296	8.5578	26.2541	0.7744
Proposed algorithm	4.6401	32.1058	0.9195	6.2267	29.3664	0.8684	7.6455	27.4558	0.8127