Image Denoising Using Sparsifying Transform Learning and Weighted Singular Values Minimization

Table 3

Gray images’ denoising results (PSNR/SSIM).

Image		GSR	WNNM	SOLST	STROLLR	STLWSM
Baboon	15	38.27/0.765	50.89/0.981	47.76/0.960	43.00/0.752	55.74/0.992
	20	35.41/0.650	48.42/0.967	45.35/0.933	40.12/0.640	53.36/0.987
	30	31.60/0.478	45.98/0.937	41.91/0.865	36.34/0.469	53.08/0.979
	40	29.01/0.359	43.45/0.896	39.45/0.788	33.70/0.356	50.63/0.963
	50	27.03/0.275	43.89/0.809	37.54/0.710	31.71/0.280	50.88/0.955
	75	23.47/0.154	41.21/0.360	34.05/0.535	28.18/0.170	48.15/0.906
Camera	15	39.32/0.577	50.74/0.979	47.72/0.959	42.89/0.741	55.32/0.990
	20	35.77/0.429	48.36/0.964	45.32/0.932	40.04/0.629	53.11/0.985
	30	31.67/0.295	45.89/0.935	41.92/0.864	36.31/0.458	52.81/0.976
	40	29.03/0.225	43.43/0.894	39.45/0.788	33.69/0.347	50.47/0.961
	50	27.04/0.179	43.79/0.806	37.54/0.709	31.70/0.271	50.71/0.952
	75	23.47/0.112	41.16/0.359	34.05/0.535	28.17/0.162	48.06/0.902
Couple	15	38.82/0.719	50.82/0.980	47.75/0.960	42.95/0.746	55.57/0.991
	20	35.61/0.584	48.40/0.967	45.34/0.933	40.09/0.634	53.26/0.986
	30	31.64/0.411	45.87/0.936	41.90/0.865	36.33/0.463	52.98/0.978
	40	29.02/0.305	43.44/0.895	39.45/0.288	33.76/0.350	50.57/0.963
	50	27.03/0.233	43.82/0.807	37.54/0.711	31.69/0.275	50.83/0.954
	75	23.47/0.132	41.19/0.359	34.05/0.535	28.18/0.166	48.14/0.905
Lax	15	38.39/0.751	50.80/0.980	47.76/0.959	42.64/0.717	55.65/0.992
	20	35.46/0.636	48.38/0.966	45.34/0.931	39.86/0.600	53.29/0.986
	30	31.61/0.470	45.88/0.935	41.91/0.863	36.20/0.425	52.97/0.977
	40	29.01/0.357	43.39/0.894	39.45/0.787	33.59/0.313	50.55/0.962
	50	27.02/0.277	43.83/0.806	37.53/0.710	31.61/0.241	50.78/0.953
	75	23.47/0.160	41.20/0.359	34.05/0.536	28.11/0.140	48.08/0.903
Man	15	38.79/0.690	50.74/0.979	47.73/0.959	42.88/0.739	55.37/0.990
	20	35.61/0.552	48.36/0.965	45.33/0.931	40.03/0.627	53.13/0.985
	30	31.64/0.381	45.89/0.935	41.90/0.863	36.29/0.454	52.85/0.976
	40	29.02/0.279	43.38/0.894	39.45/0.786	33.67/0.342	50.48/0.961
	50	27.03/0.212	43.77/0.806	37.53/0.708	31.67/0.267	50.71/0.952
	75	23.47/0.119	41.19/0.358	34.05/0.533	28.15/0.159	48.05/0.903
Woman1	15	39.02/0.648	50.81/0.996	47.75/0.960	43.08/0.759	55.53/0.991
	20	35.68/0.499	48.34/0.990	45.34/0.933	40.18/0.650	53.22/0.986
	30	31.66/0.333	45.87/0.936	41.90/0.865	36.39/0.479	52.91/0.978
	40	29.02/0.240	43.38/0.895	39.45/0.788	33.73/0.366	50.52/0.962
	50	27.03/0.181	43.81/0.807	37.54/0.710	31.71/0.289	50.74/0.954
	75	23.47/0.102	41.19/0.358	34.05/0.534	28.20/0.177	48.06/0.904