Results 141 to 150 of about 2,758 (196)
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A blind watermarking technique for multiple watermarks
Proceedings of the 2003 International Symposium on Circuits and Systems, 2003. ISCAS '03., 2003We propose a blind watermarking technique to embed multiple watermarks simultaneously. It allows the use of correlated key to embed multiple watermarks. A dual-key system is used to reduce the chance of the removal of watermark. Each embedded watermark can be decoded/detected by its own key. One direct approach and two iterative approaches are proposed
Peter H. W. Wong, Oscar C. Au
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From single watermark to dual watermark: A new approach for image watermarking
Computers & Electrical Engineering, 2012Watermarking as a powerful technique for copyright protection, content verification, covert communication and so on, has been studied for years, and is drawing more and more attention recently. There are many situations in which embedding multiple watermarks in an image is desired.
Shen, H., Chen, B.
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2009 Sixth International Conference on Information Technology: New Generations, 2009
We have developed a new watermarking process based on the curvelet transform. By selectively removing specific ranges of curvelet coefficients we introduce a high fidelity watermark into an image. This mark has a natural resilience against rotation and scaling. The watermark can be exactly retrieved.
Mohammad Eyadat +2 more
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We have developed a new watermarking process based on the curvelet transform. By selectively removing specific ranges of curvelet coefficients we introduce a high fidelity watermark into an image. This mark has a natural resilience against rotation and scaling. The watermark can be exactly retrieved.
Mohammad Eyadat +2 more
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ACM SIGMETRICS Performance Evaluation Review, 1980
Historically, benchmark tests have been one of several ways to size a computer system, and measure its performance. Today, it is more important to test the System Software than the machine hardware. (Thus the term "watermark" (as on bond paper) for software tests.) Watermarks of software suffer the same limitations and risks as benchmarks of hardware ...
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Historically, benchmark tests have been one of several ways to size a computer system, and measure its performance. Today, it is more important to test the System Software than the machine hardware. (Thus the term "watermark" (as on bond paper) for software tests.) Watermarks of software suffer the same limitations and risks as benchmarks of hardware ...
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2008 International Conference on Intelligent Information Hiding and Multimedia Signal Processing, 2008
Using stochastic data to identify ownership has a long history, with stochastic features being used for a variety of identification applications such as voice print, handwriting recognition, and authorship attribution. Embedded traits such as stylistic preferences would help solve the question of ownership. Even though people sometimes make attempts to
Qian Zhang 0058, Nigel Boston
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Using stochastic data to identify ownership has a long history, with stochastic features being used for a variety of identification applications such as voice print, handwriting recognition, and authorship attribution. Embedded traits such as stylistic preferences would help solve the question of ownership. Even though people sometimes make attempts to
Qian Zhang 0058, Nigel Boston
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Proceedings of 1st International Conference on Image Processing, 2002
The paper discusses the feasibility of coding an "undetectable" digital water mark on a standard 512/spl times/512 intensity image with an 8 bit gray scale. The watermark is capable of carrying such information as authentication or authorisation codes, or a legend essential for image interpretation.
Ron G. van Schyndel +2 more
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The paper discusses the feasibility of coding an "undetectable" digital water mark on a standard 512/spl times/512 intensity image with an 8 bit gray scale. The watermark is capable of carrying such information as authentication or authorisation codes, or a legend essential for image interpretation.
Ron G. van Schyndel +2 more
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Multimedia Tools and Applications, 2015
The protection of information is a very important issue in the digital world where the data can be easily copied, altered and transmitted. One of the well known ways to protect the multimedia is digital watermarking. For a common watermarking system, the test image is processed in digital form. Many researchers have devoted themselves to the studies of
Ming-Lun Lee, Pei-Yih Ting, Tzong-Sun Wu
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The protection of information is a very important issue in the digital world where the data can be easily copied, altered and transmitted. One of the well known ways to protect the multimedia is digital watermarking. For a common watermarking system, the test image is processed in digital form. Many researchers have devoted themselves to the studies of
Ming-Lun Lee, Pei-Yih Ting, Tzong-Sun Wu
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Proceedings of the 2001 workshop on Multimedia and security new challenges - MM&Sec '01, 2001
Mintzer and Braudaway [6] once asked: If one watermark is good, are more better? In this paper, we discuss some techniques for embedding multiple watermarks into a single multimedia object and report some observations on implementations of these techniques.
Nicholas Paul Sheppard +2 more
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Mintzer and Braudaway [6] once asked: If one watermark is good, are more better? In this paper, we discuss some techniques for embedding multiple watermarks into a single multimedia object and report some observations on implementations of these techniques.
Nicholas Paul Sheppard +2 more
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Design of Secure Watermarking Scheme for Watermarking Protocol
2007Watermarking technique enables to hide an imperceptible watermark into a multimedia content for copyright protection. However, in most conventional watermarking schemes, the watermark is embedded solely by the seller, and both the seller and the buyer know the watermarked copy, which causes unsettled dispute at the phase of arbitration.
Bin Zhao +4 more
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A Watermarking Scheme in the Encrypted Domain for Watermarking Protocol
2008In most watermarking schemes for copyright protection, a seller always knows the embedded watermark identifying a buyer. However, it incurs both repudiation issue and framing issue. To solve these problems, many watermarking protocols have been proposed based on watermarking schemes in the encrypted domain.
Bin Zhao +5 more
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