Convolutional Neural Network Combined with Half-Quadratic Splitting Method for Image Restoration

Table 2

Average PSNR/(dB) on BSD68 [4] dataset (gray) of different denoising algorithms.

Noise level	BM3D	WNNM	EPLL	TNRD	MLP	DnCNN	FFDNet	Proposed
Sigma10	33.32	33.41	33.39	—	33.49	33.72	33.76	33.74
Sigma25	28.57	28.82	28.74	28.78	28.94	29.14	29.17	29.15
Sigma35	27.09	27.39	27.35	—	27.48	27.63	27.65	27.66
Sigma50	25.62	25.86	25.83	25.80	26.01	26.15	26.16	26.19