Table 2.

PSNR (dB) values for the proposed STAN model.

Model	×2	×4
Bicubic	23.32	21.76
SRCNN [37]	33.17	27.78
DRRN [38]	34.56	29.65
MDSR [39]	34.85	29.90
RDN [40]	34.96	30.24
RCAN [41]	34.99	30.35
LTE [42]	36.22	31.11
STAN (our)	36.98	31.34