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EURASIP Journal on Advances in Signal Processing

Table 11 Experiment results comparison under contrast attacks (NC values)

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

Contrast

20% Increase

40% Increase

20% Decrease

30% Decrease

[21]

1

0.9927

1

1

[12]

1

1

1

1

[22]

0.6041

0.5742

0.8297

0.6995

[23]

1

1

0.976

0.6809

Proposed scheme

1

1

1

1

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