Image Demosaicing Based on Generative Adversarial Network

Table 3

CPSNR and SSIM of the test results for the McMaster database by different methods.

No.	1		2		3		4		5		6		7		8		9
	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM
Bilinear	29.58	0.8939	33.39	0.9252	28.99	0.9169	31.55	0.9564	34.65	0.9374	37.83	0.9599	31.78	0.8882	33.10	0.9486	34.76	0.9498
TL	33.67	0.8261	35.72	0.8740	33.96	0.8753	35.96	0.9422	35.91	0.8715	36.29	0.8887	34.81	0.8662	37.39	0.9254	37.03	0.9047
HQL	34.10	0.8733	37.33	0.9172	35.72	0.9501	37.93	0.9784	37.66	0.9239	38.23	0.9389	38.22	0.9537	39.73	0.9607	38.76	0.9373
Zhang’s	25.97	0.8484	32.89	0.9135	31.99	0.9503	33.76	0.9811	29.89	0.8999	31.85	0.9000	38.71	0.9734	36.73	0.9610	33.14	0.9237
LDI-NAT	27.47	0.8760	33.98	0.9271	31.66	0.9542	34.86	0.9842	32.58	0.9285	35.61	0.9420	35.14	0.9546	36.65	0.9656	35.51	0.9449
ARI	29.63	0.9243	35.23	0.9455	34.65	0.9728	37.92	0.9894	35.44	0.9625	38.79	0.9626	39.75	0.9792	39.55	0.9784	37.90	0.9630
MLRI	28.98	0.9135	35.06	0.9417	33.85	0.9697	37.66	0.9893	33.94	0.9533	38.29	0.9660	37.50	0.9705	37.05	0.9710	36.49	0.9588
RI-GBTF	27.44	0.8869	33.64	0.9235	32.71	0.9603	34.85	0.9843	31.43	0.9322	34.47	0.9431	39.11	0.9754	36.36	0.9640	34.10	0.9429
DnCNN	29.39	0.9236	36.66	0.9358	35.86	0.9673	37.74	0.9921	36.28	0.9579	37.95	0.9642	39.30	0.9735	38.45	0.9691	38.51	0.9582
Proposed	34.29	0.9367	37.67	0.9486	35.88	0.9738	38.06	0.9980	37.70	0.9635	38.93	0.9693	39.73	0.9798	39.87	0.9804	39.74	0.9679
No.	10		11		12		13		14		15		16		17		18
	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM	CPSNR	SSIM
Bilinear	36.86	0.9543	36.95	0.9495	34.62	0.9520	39.04	0.9606	37.55	0.9487	37.66	0.9447	31.45	0.9278	34.75	0.9375	31.46	0.9098
TL	37.10	0.8960	38.44	0.9206	37.40	0.9021	39.64	0.9153	38.79	0.9147	39.10	0.9172	34.79	0.8799	34.32	0.8727	35.56	0.8756
HQL	40.17	0.9539	40.51	0.9451	40.06	0.9517	40.04	0.9434	40.79	0.9426	40.77	0.9360	36.33	0.9051	36.12	0.8963	37.32	0.9361
Zhang’s	35.01	0.9402	35.91	0.9273	35.58	0.9446	37.73	0.9381	36.49	0.9368	36.36	0.9257	29.03	0.8675	27.65	0.8324	33.24	0.9379
LDI-NAT	37.24	0.9560	37.57	0.9427	37.33	0.9547	39.72	0.9488	37.76	0.9471	37.83	0.9414	31.01	0.8913	30.81	0.9031	33.71	0.9397
ARI	39.28	0.9723	40.23	0.9730	40.07	0.9647	40.64	0.9507	39.05	0.9575	39.41	0.9593	35.64	0.9673	34.71	0.9616	36.43	0.9666
MLRI	38.65	0.9688	39.98	0.9714	39.65	0.9636	40.63	0.9531	38.81	0.9552	38.92	0.9528	35.16	0.9632	32.58	0.9415	36.12	0.9649
RI-GBTF	36.27	0.9552	37.85	0.9610	38.13	0.9579	38.76	0.9448	37.27	0.9431	36.65	0.9309	32.19	0.9442	29.06	0.9392	35.28	0.9590
DnCNN	39.04	0.9678	39.47	0.9746	40.03	0.9614	39.87	0.9525	39.36	0.9579	40.18	0.9487	35.94	0.9603	33.89	0.9589	37.21	0.9631
Proposed	40.35	0.9755	40.62	0.9787	40.11	0.9675	40.71	0.9616	40.95	0.9670	40.93	0.9603	36.82	0.9679	34.64	0.9677	37.65	0.9690