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. |
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1.–5. rezultāts no 90.
... means of conventional message-coding techniques. Although these techniques are commonly used in watermarking systems, some recentresearchsuggeststhatsubstantiallybetterperformancecanbeachievedbyex- ploiting side information in the ...
... means that rather than being to 255 the pixel values wrap around. Therefore, for example, 253 + 4 becomes 1. Because of this wraparound, it is possible for someone who knows the watermark pattern and embedding strength to perfectly ...
... means “covered,” and graphia, which means “writing.” It is the art of concealed communication. The very existence of a message is secret. An oft-cited example of steganography is a story from Herodotus [117], who tells of a slave sent ...
... mean “Father Francesco Columna loves Polia.”5 Four hundred years later, we find the first example of a technology ... mean “lover of Polia,” might also mean “the Antiquarian”; in which case, the secret message might be better translated ...
... means that the monitoring system cannot search for an exact match in its database. Instead, it must perform a nearest-neighbor search, which is known to be substantially more complex [25, 41]. Because of the difficulty of deriving ...
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 |
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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 |