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EURASIP Journal on Advances in Signal Processing

Table 8 Experiment results comparison under Laplacian sharpening (NC values)

From: Robust digital image watermarking scheme using wave atoms with multiple description coding

Laplacian parameter

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

[21]

1

1

1

1

1

1

1

1

1

1

[12]

0.9963

0.9963

0.9963

0.9963

0.9963

0.9963

0.9963

0.9963

0.9963

0.9963

22]

0.7967

0.7975

0.8007

0.8028

0.8044

0.8083

0.8082

0.8095

0.8109

0.8215

Proposed scheme

1

1

1

1

1

1

1

1

1

1

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