Digital WatermarkingElsevier, 2001. gada 17. okt. - 542 lappuses Digital watermarking is a key ingredient to copyright protection. It provides a solution to illegal copying of digital material and has many other useful applications such as broadcast monitoring and the recording of electronic transactions. Now, for the first time, there is a book that focuses exclusively on this exciting technology. Digital Watermarking covers the crucial research findings in the field: it explains the principles underlying digital watermarking technologies, describes the requirements that have given rise to them, and discusses the diverse ends to which these technologies are being applied. As a result, additional groundwork is laid for future developments in this field, helping the reader understand and anticipate new approaches and applications. |
No grāmatas satura
1.–5. rezultāts no 92.
... Correlation 75 3.5.1 Linear Correlation 76 3.5.2 Normalized Correlation 77 3.5.3 Correlation Coefficient 80 Summary 82 4 Basic Message Coding 85 4.1 4.2 4.3 Mapping Messages into Message Vectors 86 4.1.1 Direct Message Coding 86 4.1.2 ...
... Correlation Detectors (Miller and Bloom) 384 Effect of Quantization Noise on Watermarks (Eggers and Girod) 388 B.5.1 Background 390 B.5.2 Basic Approach 390 B.5.3 Finding the Probability Density Function 390 B.5.4 Finding the Moment ...
... correlation detector calculates the correlation between the the reference pattern. If the magnitude of the correlation is higher than a threshold, the watermark is declared to be present. The message is encoded in the sign of the ...
... correlation image against to determine each of the the most likely value for the corresponding bit. This yields the decoded message. The detector does not distinguish between marked and unwatermarked images. System 5: Trellis-Coding E ...
... correlation If the highest coefficients correlation between coefficient it finds is above a threshold, it declares that the watermark is present. The message is determined according to which reference mark yielded that highest threshold ...
Saturs
1 | |
11 | |
Chapter 3 Models of Watermarking | 41 |
Chapter 4 Basic Message Coding | 85 |
Chapter 5 Watermarking with Side Information | 117 |
Chapter 6 Analyzing Errors | 157 |
Chapter 7 Using Perceptual Models | 201 |
Chapter 8 Robust Watermarking | 241 |
Appendix A Background Concepts | 359 |
Appendix B Selected Theoretical Results | 373 |
Appendix C Source Code | 395 |
Appendix D Notation and Common Variables | 483 |
Glossary | 487 |
501 | |
521 | |
About the Authors | 541 |
Citi izdevumi - Skatīt visu
Digital Watermarking: Third International Workshop, IWDW 2004, Seoul, Korea ... Ingemar J. Cox Ierobežota priekšskatīšana - 2005 |
Digital Watermarking: Third International Workshop, IWDW 2004, Seoul, Korea ... Ingemar J. Cox,Ton Kalker,Heung-Kyu Lee Ierobežota priekšskatīšana - 2005 |
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Atsauces uz šo grāmatu
Multimedia Encryption and Watermarking Borko Furht,Edin Muharemagic,Daniel Socek Priekšskatījums nav pieejams - 2005 |