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A volume in the
Digital Imaging and Computer Vision series
Visual Cryptography and Secret Image
Sharing
Edited by:
Stelvio Cimato* and Ching-Nung Yang**
*Universita degli studi di Milano, Italy
**National Dong Hwa University, Taiwan
Boca Raton, FL, CRC Press / Taylor & Francis, August 2011
ISBN 978-1-4398-3721-4
Audience:
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Academic community (graduate student, post-doc and
faculty) in Electrical Engineering, Computer Science, and Applied
Mathematics |
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Industrial community (engineers,
engineering managers, and research lab staff) |
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With rapid progress in Internet and
digital imaging technology, there are more and more ways to easily
create, publish, and distribute images. Considered the first book to
focus on the relationship between digital imaging and privacy
protection, Visual Cryptography and Secret Image Sharing is a
complete introduction to novel security methods and sharing-control
mechanisms used to protect against unauthorized data access and secure
dissemination of sensitive information.
Image data protection and image-based authentication
techniques offer efficient solutions for controlling how private data
and images are made available only to select people. Essential to the
design of systems used to manage images that contain sensitive data -
such as medical records, financial transactions, and electronic voting
systems - the methods presented in this book are useful to counter
traditional encryption techniques, which do not scale well and are less
efficient when applied directly to image files.
An exploration of the most prominent topics in digital
imaging security, this book discusses:
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Potential for sharing multiple
secrets |
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Visual cryptography scheme - based
either on the probabilistic reconstruction of the secret image, or on
different logical operations for combining shared images |
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Inclusion of pictures on the
distributed shares |
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Contrast enhancement techniques |
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Color image visual cryptography |
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Cheating prevention |
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Alignment problems for image shares |
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Steganography and authentication |
In the continually evolving world of
secure image sharing, a growing number of people are becoming involved
as new applications and business models are being developed all the
time. This contributed volume gives academicians, researchers, and
professionals the insight of well-known experts on key concepts, issues,
trends, and technologies in this emerging field.
Features:
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Describes the latest techniques,
algorithms, and solutions for image sharing and visual cryptography |
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Provides extensive coverage of both
theoretical aspects and practical applications of image sharing
techniques |
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Explores new techniques for visual
cryptography using random grids and contrast optimizations |
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Details recent advances in visual
cryptography, including probabilistic schemes and colored image
sharing techniques |
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Includes several application
examples of image sharing for steganography and authentication |
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