Table 2 PSNR of reconstructed images (r=6w0)

DCT [12]

51.400

46.531

49.497

47.097

49.719

41.147

44.264

SDCT [2]

45.708

41.593

44.308

40.532

43.044

35.956

36.517

BAS-2008 [4]

43.996

39.498

42.449

38.304

41.139

33.886

34.364

BAS-2009 [6]

48.096

44.828

46.470

40.143

44.035

37.982

36.869

BAS-2010 [8]

50.976

46.483

48.912

46.657

48.193

40.617

42.486

BAS-2011 [9]

48.010

44.874

46.328

40.073

44.690

38.085

37.191

CB-2011 [13]

49.537

45.353

47.892

43.163

46.455

39.668

39.815

CB-2012 [3]

46.621

44.217

45.027

39.763

41.939

36.486

35.223

Transformation in [14]

30.193

29.635

32.107

29.411

29.777

26.575

20.612

Transformation in [15]

27.895

27.463

29.797

27.260

27.547

24.530

18.445

T [1]

30.560

30.034

32.565

29.851

30.090

26.862

20.982

T _SFG [1]

30.889

29.867

32.920

29.117

30.189

26.779

20.900