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Table 1 The sample of prediction coefficients for support pixels

From: Reversible data hiding using least square predictor via the LASSO

Index i

x(n − i)

β i

LS-based

LASSO

0

N/A

−26.393

−13.395

1

124

−0.022

0

2

84

0.337

0.228

3

123

0.499

0.458

4

77

0.417

0.374

5

95

0.459

0.434

6

141

−0.449

−0.312

7

98

0.073

0

8

146

−0.215

−0.084

9

113

0.168

0.021

10

46

−0.230

−0.086

11

84

−0.053

−0.069

12

59

0.154

0.094

13

73

−0.042

0

14

101

0.153

0.072