This book describes the need of copyright protection for multimedia objects and develops an invisible image watermarking scheme to serve the purpose of copyright protection. Here intelligent systems are introduced to generate a better visual transparency with increased payload.

Table of Contents:
Contents Preface, xi Acknowledgments, xv About the Authors, xvii Chapter 1 ▪ Introduction 1 1.1 INFORMATION HIDING AND COPYRIGHT PROTECTION 1 1.1.1 Overview 1 1.1.2 Hiding Techniques 2 1.1.2.1 The Ancient Age 3 1.1.2.2 The Modern Age 6 1.2 DIGITAL WATERMARKING AS A COPYRIGHT PROTECTION TOOL 11 1.2.1 Overview 11 1.2.2 Basic Operations 13 1.2.3 Classification 16 1.2.4 Properties for a Good Digital Watermarking Scheme 19 1.2.5 Application 21 1.2.6 Attacks 24 Chapter 2 ▪ Perspectives on Digital Image Watermarking 27 2.1 INTRODUCTION TO DIGITAL IMAGE 27 2.2 VARIOUS TECHNIQUES OF DIGITAL IMAGE WATERMARKING 32 2.2.1 Spatial Domain Practices 32 2.2.2 Frequency Domain Practices 35 2.3 SOME EXISTING FRAMEWORKS FOR DIGITAL IMAGE WATERMARKING 44 Chapter 3 ▪ Intelligent Systems Used in Copyright Protection 59 3.1 VISUAL SALIENCY AND ITS PURPOSE IN DIGITAL WATERMARKING 61 3.1.1 Saliency and Salient Object 61 3.1.2 The Purpose of Saliency in Digital Watermarking 61 3.1.3 Saliency Detection and a Saliency Map 62 3.1.4 Various Saliency Map Algorithms for Images 64 3.2 INTELLIGENT IMAGE CLUSTERING: THE K-MEANS ALGORITHM 67 3.2.1 Data Clustering 67 3.2.2 Need for Data Clustering in Digital Image Watermarking 70 3.2.3 K-means Algorithm for Data Clustering 71 Chapter 4 ▪ Copyright Protection Framework 75 4.1 WATERMARK EMBEDDING SYSTEM 75 Step 1: Evaluating the Saliency Map from the Cover Image 77 Step 2: Constructing the Hiding Capacity Map from the Saliency Map 80 Step 3: Constituting the Watermarked Image through Adaptive LSB Replacement 83 4.2 WATERMARK EXTRACTING SYSTEM 86 Chapter 5 ▪ Hardware Implementation 91 5.1 OVERVIEW OF HARDWARE REALIZATION FOR DIGITAL WATERMARKING 92 5.2 HARDWARE ARCHITECTURE FOR THE PROPOSED IMAGE WATERMARKING SCHEME 96 5.2.1 Watermark Embedding System 96 5.2.2 Watermark Extracting System 100 Chapter 6 ▪ System Evaluation 105 6.1 EMBEDDING SYSTEM OUTCOMES 105 6.2 ESTIMATION OF DATA HIDING CAPACITY 108 6.3 ANALYSIS OF IMPERCEPTIBILITY OR DATA TRANSPARENCY 109 6.3.1 Description of Image Quality Metrics, Involved in Imperceptibility Analysis 109 6.3.2 Evaluation of Imperceptibility for the Proposed Watermarking Scheme 115 6.4 OUTPUTS OF THE WATERMARK EXTRACTING SYSTEM AND ITS EFFICACY IN TERMS OF ROBUSTNESS 122 6.5 COMPARATIVE STUDY ON THE PROFICIENCY OF THE PROPOSED WATERMARKING SYSTEM 125 6.6 AN EVALUATION OF HARDWARE SYSTEMS FOR THE PROPOSED WATERMARKING LOGIC 126 Chapter 7 ▪ Conclusion 131 REFERENCES 135 INDEX 151