Image Super-Resolution Using Lightweight Multiscale Residual Dense Network

Table 1

Evaluation index (PSNR/SSIM) of super-resolution results by different methods.

Scale	Test images	SRCNN	FSRCNN	SRGAN	RDN	MRDN (ours)
2×	Power	28.61/0.97	16.37/0.56	27.76/0.86	29.40/0.97	31.26/0.98
	Baby	27.63/0.92	23.46/0.69	32.42/0.93	32.03/0.94	34.00/0.95
	Mountain	24.94/0.80	17.32/0.45	20.88/0.66	26.15/0.83	26.39/0.86
	Girl	28.94/0.74	25.67/0.62	26.88/0.66	30.64/0.79	30.75/0.80
4×	Power	21.92/0.87	27.88/0.85	30.93/0.91	27.04/0.92	31.17/0.95
	Baby	25.17/0.80	24.09/0.65	29.36/0.83	27.75/0.81	29.70/0.83
	Mountain	21.96/0.57	20.47/0.40	18.23/0.48	22.34/0.60	22.31/0.61
	Girl	27.45/0.66	19.46/0.51	24.97/0.58	26.95/0.63	28.70/0.68