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Direct Embedding and Detection of RST Invariant Watermarks

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Author(s): Fletcher Larkin

Language: English
Pages: 16

Introduction......Page 1
2-D Fourier Mellin Basis Function......Page 2
Homogeneous Functions......Page 3
Orthogonality of Truncated LRHFs......Page 6
The Remarkable Spectral Properties of LRHFs......Page 7
Optimal Detection: Correlation and Translation Invariance......Page 8
Embedding Real Marks and Detecting with Complex Patterns......Page 10
Detection Algorithm......Page 11
Performance: Resistance to Watermark Attacks......Page 14
References......Page 15