Image Denoising Using Sparsifying Transform Learning and Weighted Singular Values Minimization

Table 4

Color images’ denoising results (PSNR/SSIM).

Image		GSR	WNNM	SOLST	STROLLR	STLWSM
House	15	38.89/0.507	50.87/0.980	47.76/0.960	43.06/0.756	55.73/0.992
	20	35.08/0.550	48.43/0.967	45.35/0.933	40.14/0.645	53.35/0.987
	30	30.90/0.448	45.96/0.937	41.91/0.865	36.37/0.477	53.04/0.978
	40	28.24/0.356	43.40/0.896	39.45/0.788	33.73/0.364	50.63/0.963
	50	26.24/0.268	43.86/0.808	37.54/0.710	31.71/0.287	50.86/0.955
	75	22.67/0.152	41.19/0.359	34.05/0.534	28.19/0.176	48.14/0.905
House 2	15	38.20/0.329	50.78/0.980	47.74/0.960	43.19/0.770	55.55/0.992
	20	34.87/0.319	48.37/0.967	45.33/0.933	40.26/0.663	53.25/0.986
	30	30.85/0.265	45.88/0.937	41.90/0.865	36.44/0.466	52.97/0.978
	40	28.22/0.211	43.42/0.896	39.44/0.789	33.80/0.383	50.57/0.963
	50	26.23/0.172	43.82/0.809	37.54/0.710	31.76/0.278	50.84/0.955
	75	22.67/0.109	41.22/0.358	34.05/0.533	28.21/0.190	48.15/0.907
Lake	15	38.10/0.484	50.67/0.979	47.71/0.959	42.93/0.746	55.29/0.990
	20	34.83/0.461	48.27/0.965	45.31/0.932	40.08/0.635	53.09/0.985
	30	30.84/0.381	45.83/0.935	41.89/0.864	36.32/0.466	52.82/0.977
	40	28.22/0.291	43.38/0.895	39.44/0.788	33.71/0.354	50.48/0.962
	50	26.23/0.226	43.78/0.808	37.54/0.710	31.68/0.278	50.72/0.954
	75	22.67/0.130	41.22/0.359	34.04/0.534	28.16/0.169	48.08/0.906
Pepper	15	38.52/0.535	50.74/0.978	47.74/0.959	42.94/0.744	55.28/0.989
	20	34.97/0.492	48.33/0.964	45.33/0.932	40.07/0.632	53.06/0.984
	30	30.88/0.439	45.84/0.933	41.98/0.864	39.52/0.476	52.73/0.975
	40	28.23/0.344	43.35/0.892	39.45/0.787	33.69/0.348	50.45/0.959
	50	26.24/0.279	43.81/0.805	37.54/0.709	31.70/0.272	50.61/0.950
	75	22.67/0.158	41.18/0.358	34.05/0.534	28.16/0.164	47.95/0.900
Plane	15	38.44/0.451	50.82/0.980	47.74/0.961	43.31/0.782	55.57/0.992
	20	34.94/0.431	48.37/0.967	45.34/0.939	40.35/0.676	53.25/0.987
	30	30.87/0.348	45.88/0.937	41.91/0.867	36.51/0.511	52.95/0.979
	40	28.23/0.265	43.41/0.896	39.45/0.790	33.85/0.397	50.55/0.963
	50	26.23/0.204	43.85/0.809	37.54/0.712	31.81/0.318	50.79/0.955
	75	22.67/0.117	41.17/0.358	34.05/0.534	28.23/0.200	48.14/0.906
Woman 2	15	38.82/0.398	50.73/0.979	47.74/0,959	42.89/0.737	55.36/0.990
	20	35.07/0.390	48.32/0.965	45.34/0.932	40.03/0.623	53.11/0.985
	30	30.90/0.302	45.86/0.934	41.90/0.863	36.29/0.451	52.73/0.976
	40	28.23/0.227	43.42/0.893	39.44/0.786	33.67/0.338	50.39/0.960
	50	26.24/0.174	43.84/0.805	37.53/0.708	31.67/0.264	50.61/0.951
	75	22.67/0.102	41.14/0.357	34.04/0.533	28.14/0.157	47.93/0.901