| Description |
1 online resource |
| Contents |
Cover; Half Title; Title; Copyright; Dedication; Contents; Foreword; Preface; Authors; Section I Visual Cryptography; Chapter 1 Visual Cryptography: Introduction; 1.1 INTRODUCTION; 1.2 VISUAL CRYPTOGRAPHY; 1.3 APPLICATIONS OF VISUAL CRYPTOGRAPHY; 1.3.1 Trojan-Free Secure Transaction; 1.3.2 Authentication; 1.3.3 Access Control; 1.3.4 Transaction Tracking; 1.3.5 Watermarking; 1.4 PRELIMINARIES; 1.5 FUNDAMENTAL PRINCIPLES OF VISUAL SECRET SHARING; 1.5.1 Pixels Expansion m; 1.5.2 Contrast; 1.5.3 Basis Matrices; 1.5.4 Concept of Black and White Pixels in Visual Cryptography |
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1.6 FORMATION OF A BASIS MATRIX1.6.1 Observations Related to The Basis Matrix Creation Approach of Naor and Shamir; 1.6.2 Essential Conditions for a Basis Matrix; 1.7 DIFFERENT EVALUATION PARAMETERS; 1.7.1 Objective Evaluation Parameters; 1.7.2 Subjective Parameters; Chapter 2 Various Dimensions of Visual Cryptography; 2.1 VARIOUS DIMENSIONS OF VISUAL CRYPTOGRAPHY; 2.1.1 Traditional Visual Cryptography (TVC); 2.1.1.1 Threshold visual cryptography; 2.1.2 Extended Visual Cryptography (EVC); 2.1.2.1 Halftone visual cryptography (HVC); 2.1.2.2 Signi cance of a halftone image over a binary image |
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2.1.2.3 Halftone image creation using error di usion2.1.2.4 Tagged visual cryptography (TVC); 2.1.2.5 Friendly visual cryptography (FVC); 2.1.2.6 Size invariant visual cryptography; 2.1.2.7 Progressive visual cryptography (PVC); 2.1.2.8 Progressive visual cryptography with meaningful shares without pixel expan- sion; 2.1.3 Dynamic Visual Cryptography (DVC); 2.1.3.1 Multitone/Continuous tone visual cryptography (MVC); 2.1.3.2 MVC with unexpanded meaningful shares; 2.1.3.3 Perfect recovery of the secret image in MVC |
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2.1.3.4 Visual cryptography with multiple se- crets or multi secret sharing (MSS)2.1.3.5 Angle restriction problem in MSS; 2.1.3.6 Multi secret sharing with unexpanded meaningful shares; 2.1.3.7 XOR-based visual cryptography; 2.1.3.8 Hybrid approach with XOR-based VC, multitone VC, FVC, size invariant VC and multi secret sharing; 2.1.3.9 Veri able visual cryptography (VVC); 2.1.3.10 Hybrid approach with VVC; 2.1.3.11 Random grid-based visual cryptography (RGVC); 2.1.3.12 Hybrid approaches using RGVC; Chapter 3 VC Approaches with Computationless Recovery of Secrets |
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3.1 COMPUTATIONLESS AND COMPUTATIONƯBASED VISUAL CRYPTOGRAPHY APPROACHES3.2 BASICS FOR THE DEVELOPMENT OF COMPUTATIONƯLESS VC APPROACHES; 3.2.1 Development of Threshold Visual Cryptography; 3.2.2 Development of a Halftone Visual Cryptography (HVC) Scheme; 3.2.3 Development of a Friendly Visual Cryptography (FVC) Scheme; 3.2.4 Development of Size Invariant Visual Cryptography; 3.2.4.1 Preprocessing of secret image for size invariant visual cryptography; 3.2.4.2 Size invariant share generation with the help of the preprocessed secret |
| Summary |
This book focuses on image based security techniques, namely visual cryptography, watermarking, and steganography. The first section explores basic to advanced concepts of visual cryptography (VC). The second section covers Digital Image Watermarking including watermarking algorithms, frameworks for modeling watermarking systems, and the evaluation of watermarking techniques. The final section analyzes Steganography, including the notion, terminology and building blocks of steganographic communication. The book includes many examples and applications, as well as implementation using MATLAB-- Provided by publisher |
| Bibliography |
Includes index |
| Notes |
Description based on print version record |
| Subject |
Image files -- Security measures -- Handbooks, manuals, etc
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Digital video -- Security measures -- Handbooks, manuals, etc
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Data encryption (Computer science) -- Handbooks, manuals, etc
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COMPUTERS -- Security -- General.
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Data encryption (Computer science)
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Computer security
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Cryptography
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Image processing
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| Genre/Form |
Electronic books
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Handbooks and manuals
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| Form |
Electronic book
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| Author |
Agarwal, Suneeta, author
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Suri, Jasjit S., author
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| LC no. |
2020691561 |
| ISBN |
9781351681551 |
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1351681559 |
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9781315166964 |
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1315166968 |
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9781351681568 |
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1351681567 |
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