Multimedia Security

5	Digital Watermarking Based on Chaotic Map and Reference Register
Yi-Ta Wu and Frank Y. Shih

CONTENTS

5.1    Introduction

5.2    Block-Based Chaotic Map

5.3    Reference Register

5.4    Proposed Watermarking Algorithm

5.5    Experimental Results

5.6    Conclusions

References

5.1    INTRODUCTION

Since multimedia technologies have been becoming increasingly sophisticated in the rapidly growing Internet applications, data security, including copyright protection and data integrity detection, has raised tremendous concerns. One solution to achieve data security is the digital watermarking technology that embeds hidden information or secret data in a host image (Berghel and O’Gorman, 1996; Eggers and Girod, 2002; Wu, 2005). It serves as a ...