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Table 2 PSNR (dB) of \(\mathbb {M}_{H,k}\) and \(\mathbb {M}_{\text {aniso,k}}\) representations at sample density of 3 %

From: Anisotropic mesh adaptation for image representation

Image

Mesh

PSNR (dB)

  

k=1

k=2

k=3

k=4

k=5

Lena

\(\mathbb {M}_{H,k}\)

29.67

29.97

30.45

30.19

30.18

 

\(\mathbb {M}_{\text {aniso,k}}\)

29.81

30.48

31.00

30.01

29.80

Lighthouse

\(\mathbb {M}_{H,k}\)

26.54

26.68

26.76

26.85

26.68

 

\(\mathbb {M}_{\text {aniso,k}}\)

26.69

26.85

26.78

26.62

26.19

Peppers

\(\mathbb {M}_{H,k}\)

29.65

30.16

31.05

29.93

29.48

 

\(\mathbb {M}_{\text {aniso,k}}\)

30.01

29.74

30.89

29.92

29.69

Roof

\(\mathbb {M}_{H,k}\)

27.40

28.07

28.43

28.66

28.79

 

\(\mathbb {M}_{\text {aniso,k}}\)

27.55

28.16

28.48

28.62

28.79

Saturn

\(\mathbb {M}_{H,k}\)

48.89

49.93

48.74

46.05

45.91

 

\(\mathbb {M}_{\text {aniso,k}}\)

48.97

49.89

49.77

48.87

47.91