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Értesítés a kedvenc témákról
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Intelligent Copyright Protection for Images

Intelligent Copyright Protection for Images

 
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Kiadó: Chapman and Hall
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Rövid leírás:

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.

Hosszú leírás:
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.
Tartalomjegyzék:

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