نتایج جستجو برای: watermarking

تعداد نتایج: 6727  

2004
WEN XING ZHE-MING LU HAO-XIAN WANG

With the growing interest in copyright protection of multimedia, digital watermarking has been presented and widely researched. The digital image watermarking techniques are usually performed in spatial or transform domain. Most of transformdomain watermarking methods are based on Discrete Cosine Transforms (DCT) and robust to JPEG lossy compression. Recently, digital image watermarking based o...

Journal: :CoRR 2011
Sabu M. Thampi Ann Jisma Jacob

Biometric security is a fast growing area. Protecting biometric data is very important since it can be misused by attackers. In order to increase security of biometric data there are different methods in which watermarking is widely accepted. A more acceptable, new important development in this area is reversible watermarking in which the original image can be completely restored and the waterm...

2005
Yu-Cheng Fan Lan-Da Van Chun-Ming Huang Hen-Wai Tsao

This paper proposes a hardware-efficient architecture design of wavelet-based adaptive visible watermarking. Our method adopts discrete wavelet transform (DWT) to embed visible watermarking. We perform this algorithm using hardware-efficient architectures that combine operational reduction and resource sharing techniques. Our method provides high quality visible watermarking image and small har...

1996
Jian Zhao

This paper describes a digital watermarking service which allows the publisher and information provider to mark and identify their copyrighted materials through the World Wide Web (WWW). First a general copyright watermarking scheme is proposed to aim at identifying the ownership and distribution path of multimedia works. Then a class of digital watermarking methods for images, videos and struc...

Journal: :Future Internet 2017
Heng Zhang Cheng-You Wang Xiao Zhou

With the development of image processing technology, the copyright protection of digital images has become an urgent problem to be solved. As an effective method, the robust digital watermarking technique emerges at a historic moment. Currently, most robust watermarking schemes are performed in the transform domains, such as the discrete cosine transform (DCT) and singular value decomposition (...

2007
Bin Zhao Lanjun Dang Weidong Kou Jun Zhang Xuefei Cao

Watermarking 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. To solve this problem, many watermarking protocols have be...

Journal: :Computers & Electrical Engineering 2009
Elias Kougianos Saraju P. Mohanty Rabi N. Mahapatra

Digital media offer several distinct advantages over analog media, such as high quality, ease of editing, and ease of processing operations such as compression and high fidelity copying. Digital data is commonly available through digital TV broadcast, CD, DVD, and computing devices such as personal computers. The ease by which a digital media object can be duplicated and distributed has led to ...

2015

Security analysis is provided based on tool-sets for content authentication. Given a watermark payload, the watermarking scheme should be. IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY. Tune a robust watermarking scheme to.have been devoted to security analysis in which successful attacks have been. Posed semi-fragile watermark-based authentication systems fail security.In this paper ...

2016
Kamalpreet Kaur

in this article, we focus on the complementary role of watermarking with respect to medical information security (integrity, authenticity ...) and management. We review sample cases where watermarking has been deployed. We conclude that watermarking has found a niche role in healthcare systems, as an instrument for protection of medical information, for secure sharing and handling of medical im...

2001
Avi Levy Doron Shaked

Digital image watermarking is the process of encoding information into a digital image without deteriorating the visual quality of the image. Digital watermarking techniques are designed to withstand various attacks such as standard image processing operations, compression and geometric transformations. In this report we focus on watermarking of printed images and argue that this application re...

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