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Table 2 PSNR and SSIM index values of each method for image (HEADNECK)

From: TV2++: a novel spatial-temporal total variation for super resolution with exponential-type norm

Methods

PSNR

SSIM

LRTV2++

28.94

0.9846

NLM

26.34

0.9184

L1TV

25.84

0.9211

L2TV

25.87

0.8639

LRTV

25.04

0.9556