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Table 6 The average PSNR and SSIM values for different iteration numbers (4×)

From: Noisy image magnification with total variation regularization and order-changed dictionary learning

Iteration numbers

σ

 

5

10

15

20

100

28.753

26.580

23.678

21.350

 

0.8209

0.6646

0.5194

0.4075

200

28.791

26.588

23.704

21.621

 

0.8225

0.6661

0.5217

0.4164

300

28.770

26.594

23.756

21.598

 

0.8210

0.6725

0.5211

0.4166

400

28.788

26.609

23.807

21.533

 

0.8212

0.6710

0.5213

0.4122

  1. PSNR, peak signal-to-noise ratio; SSIM, structural similarity.