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 |