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Encyclopedia results for Watermarking

  1. Digital watermarking

    watermarking the text Brian Kell 2006 is visible across the center of the image Digital watermarking ... for visible identification. In digital watermarking, the signal may be audio, pictures, or video ... different watermarks at the same time. In visible digital watermarking, the information is visible ... logo to the corner of transmitted video, this also is a visible watermark. In invisible digital watermarking ... in the digital signal. In either case, as in visible watermarking, the objective is to attach ownership .... One application of watermarking is in copyright protection systems, which are intended to prevent ... with descriptive information is another application of invisible watermarking. While some file formats for digital media may contain additional information called metadata , digital watermarking is distinctive in that the data is carried right in the signal. Applications Digital watermarking ... news often contains watermarked video from international agencies Covert communication Digital watermarking ... where the watermark is to be embedded is called the host signal. A watermarking system is usually divided ... still is present and it may be extracted. In robust digital watermarking applications, the extraction .... In fragile digital watermarking, the extraction algorithm should fail if any change is made to the signal ... L. Miller, Jeffrey A. Bloom, Jessica Fridrich and Ton not Tom Kalker, Digital Watermarking and Steganography ... ref Digital watermarking techniques may be classified in several ways. Robustness A digital watermark ... of the embedded message determines two different main classes of digital watermarking schemes The message ... of the watermark in the marked object. This kind of watermarking scheme is usually referred to as zero bit or presence watermarking schemes . Sometimes, this type of watermarking scheme is called ... watermarking or non zero bit watermarking schemes. Embedding method A digital watermarking method ... capacity due to host Interference communication interference . A digital watermarking method ...   more details



  1. Watermarking attack

    Use ymd dates date September 2010 In cryptography, a watermarking attack is an attack on disk encryption methods where the presence of a specially crafted piece of data e.g., a decoy file can be detected by an attacker without knowing the encryption key cryptography key . Problem description Disk encryption suites generally operate on data in 512 byte cylinder head sector sector s which are individually encrypted and decrypted. These 512 byte sectors alone can use any block cipher mode of operation typically Cipher Block Chaining CBC , but since arbitrary sectors in the middle of the disk need to be accessible individually, they cannot depend on the contents of their preceding succeeding sectors. Thus, with CBC, each sector has to have its own initialization vector IV . If these IVs are predictable by an attacker and the filesystem reliably starts file content at the same offset to the start of each sector, and files are likely to be largely contiguous , then there is a chosen plaintext attack which can reveal the existence of encrypted data, as follows. A special plaintext file is created and encrypted with the encryption method under attack, such that the first ciphertext block following the IV in two or more different perhaps adjacent sectors is identical. Doing this requires that plaintext block 1 XOR IV 1 is identical to plaintext block 2 XOR IV 2, thus that plaintext block 1 XOR plaintext block 2 is identical to IV 1 XOR IV 2. The ciphertext block patterns generated in this way can give away the existence of the file, without any need for the disk to be decrypted first. The problem is analogous to that of using block ciphers in the block cipher modes of operation Electronic codebook ECB electronic codebook ECB mode, but instead of whole blocks, only the first block in different sectors are identical. This weakness affected many disk encryption programs, including older versions of BestCrypt ref name bestcrypt iv flaw cite paper author Chiriliuc, Adal title BestCrypt ...   more details



  1. Digital Watermarking Alliance

    The Digital Watermarking Alliance is a group of like minded companies that share a common interest in furthering the adoption of digital watermarking . The mission of the Digital Watermarking Alliance is to create awareness and promote the value of digital watermarking to content owners, industry, policy makers, and consumers. Founding members The Digital Watermarking Alliance is made up of 12 companies that all have an established presence in the digital watermarking technology and solutions market. Member companies include Cinea Digimarc GCS Research Jura MediaGrid MSI Philips Signum Teletrax Thomson SA Cinavia was Verance Verimatrix, Inc. See also Digital watermarking Watermark Watermark detection Watermark data file Copy attack Copy protection External links http www.digitalwatermarkingalliance.org Digital Watermarking Alliance Category Watermarking Category Computer graphics organizations ...   more details



  1. Activated Content

    orphan date December 2008 Infobox Website name Activated Content url http www.activatedcontent.com type Digital Audio Watermarking registration Client owner Private author Activated Content launch date January 5, 2000 current version 1.0 Activated Content is a digital watermarking company based in Seattle , Washington. The company has its own proprietary audio watermarking technology and provides several solutions based around watermarking. Activated Content was the first company to offer turnkey audio watermarking solutions to the music industry. The system was designed with help from Sony Music and Universal Music. ref name microsoft cite web url http www.microsoft.com presspass press 2007 aug07 08 15ActivatedContentPR.mspx title Press Release Activated Content Licenses Microsoft Technology to Enhance Audio Watermarking Efforts ref ref name wired cite web url http www.wired.com entertainment music commentary listeningpost 2007 08 listeningpost 0820 title Wired Magazine ref ref name arstechnica cite web url http arstechnica.com news.ars post 20070819 activated licenses ms watermarking to sell ads.html title Deal may lead to free but watermarked music ref References reflist 1 refbegin refend External links http www.activatedcontent.com Activated Content Homepage Category Internet properties established in 2000 Category Watermarking business stub computer security stub ...   more details



  1. File:Watermark life cycle.png

    Summary Information Description Watermarking Life Cycle Phases Source self made, Dissertation Date Author Andreas Lang other versions Licensing PD self date April 2008 ...   more details



  1. ECRYPT

    multiple issues lead too short August 2010 unreferenced August 2010 ECRYPT European Network of Excellence for Cryptology is a 4 year Europe an research initiative launched on 1 February 2004. The stated objective is to, intensify the collaboration of European researchers in information security , and more in particular in cryptology and digital watermarking . ECRYPT list five core research areas, termed virtual laboratories symmetric key algorithms STVL , public key algorithm s AZTEC , protocol cryptography protocol PROVILAB , secure and efficient implementations VAMPIRE and digital watermarking watermarking WAVILA . In August 2008, the network started into another 4 year phase as ECRYPT II. See also eSTREAM NESSIE External links http www.ecrypt.eu.org ECRYPT II home page DEFAULTSORT Ecrypt Category Organizations in cryptography crypto stub fr European Network of Excellence for Cryptology it ECRYPT ...   more details



  1. File:SS Alpena.JPG

    Summary Information Description Photo of the SS Alpena pre 1880 Note Watermarking was removed from this version Source http www.michiganshipwrecks.org alpena.htm Michigan Shipwreck Associates Date 12 07 2008 Author unknown Permission see below other versions Licensing PD US ...   more details



  1. Civolution

    . The first digital watermarking activities started in the Philips Research labs in 1996, after ... tracking applications using Philips audio and video digital watermarking technology, and the recently ... . Philips Content Identification digital watermarking technology was used for identifying the source ... where the illegal copy occurred. A few months later a digital watermarking solution for the PayTV environment ... Thomson Software and Technology Solution STS watermarking business from Thomson SA Thomson . As a result ... Civolution offers a suite of product and services using a proprietary and patented digital watermarking and fingerprinting technologies. Civolution digital watermarking technology is applied in a number ... in both digital watermarking and fingerprinting technologies have allowed new applications and business ... the 12 founding members of the Digital Watermarking Alliance , an organization that was formed to promote and educate the public about the benefits of digital watermarking technology. External links ... Thomson Software and Technology Solution watermarking business http www.reuters.com article pressRelease ... Distribution http www.streamingmedia.com press view.asp?id 12175 br Watermarking supplier expects ...   more details



  1. Watermark (data file)

    and even help in recovering some of the lost data. A disadvantage of digital watermarking is that a subscriber ... 2009 http www.digitalwatermarkingalliance.org The Digital Watermarking Alliance Furthering the Adoption of Digital Watermarking http mydrmspace.com Open Platform for testing digital watermarking systems computing stub Category Authentication methods Category Watermarking cs Vodoznak watermark ...   more details



  1. Watermark (disambiguation)

    Wiktionarypar watermark Watermark can refer to Watermark , a recognizable image or pattern in paper used to identify authenticity Digital watermarks and digital security Digital watermarking , a technique to embed data in digital audio, images or video Watermark data file , a method for ensuring data integrity which combines aspects of data hashing and digital watermarking Watermark data synchronization , Directory Synchronization related programming terminology High water mark computer security , Network Security terminology Watermarking attack , an attack on disk encryption methods Music Watermark Enya album Watermark Enya album , a 1988 album by Enya Watermark Art Garfunkel album Watermark Art Garfunkel album , a 1977 album by Art Garfunkel Watermark Weakerthans EP Watermark band , a CCM singing duo comprising Nathan and Christy Nockels Books and films Watermarks film Watermarks film , a 2004 documentary about the Viennese Hakoah swim team Watermark , a 1992 book by Joseph Brodsky Watermark A Novel of the Middle Ages , a 2010 book by Vanitha Sankaran Organizations Watermark Inc. , a radio syndication company Finance Watermark , a target dollar amount for hedge fund managers before they can take profit. Disambig NOTOC fr Watermark it Watermark pt Watermark ru sv Watermark uk ...   more details



  1. File:BBRR1GP7DillwynVa.jpg

    Summary Photo by William J. Grimes Licensing NoRightsReserved Watermarking This image is watermarked to give credit to the photographer, just as an artist signs their work I removed the watermark to comply with Wikipedia policy. The image is in the public domain so no obligation to attribute the work. The photo is by William J. Grimes. User Iain Iain 05 15, 6 August 2007 UTC ...   more details



  1. File:Watermark life cycle.svg

    Summary Information Description Stages of w digital watermarking Source I User Amit6 Amit6 User talk Amit6 talk created this work entirely by myself. Date 2010 01 05 Author User Amit6 Amit6 User talk Amit6 talk other versions File Watermark life cycle.png 500px Licensing Self cc by 3.0 ...   more details



  1. Audio watermark detection

    Confusing date November 2009 Watermarking is the process of embedding information into a signal in a way that is difficult to remove. The signal may be audio, video or pictures, to name a few. If the signal is copied, then the information is also carried in the copy. A signal may carry several different watermarks at the same time. Watermarking become more and more important to enable copyright protection and ownership verification. One of the most secure techniques of audio Digital watermarking watermarking is spread spectrum audio watermarking SSW . Spread Spectrum is a general technique for embedding watermarks that can be implemented in any transform domain or in the time domain. For instance Modified Audio Signal Keying MASK is a modified version of the spread spectrum technique applied in the time domain. Although spread spectrum methods can be generalized to 3D datasets, since they are often far too slow to cope with very large meshes due to their complex computations, recently some alternatives are explored like those that are based on orthogonalized radial basis functions. SSW hides information by spreading their spectrum which is called watermark and adds it to a host signal as a watermarked signal. Spreading spectrum is done by a pseudonoise PN sequence. In conventional SSW approaches, the receiver must know the PN sequence used at the transmitter as well as the location of the watermark in watermarked signal for detecting hidden information. This method is attributed high security features, since any unauthorized user who does not access this information cannot detect any hidden information. Detection of the PN sequence is the key factor for detection of hidden information from SSW. Although PN sequence detection is possible by using heuristic approaches such as evolutionary algorithms, the high computational cost of this task can make it impractical. Much ... Digital audio Category Digital watermarking ...   more details



  1. Copy attack

    distinguish Replay attack The copy attack is an attack on certain digital watermarking systems proposed by M. Kutter, S. Voloshynovskiy, and A. Herrige in a paper presented in January, 2000 at the Photonics West SPIE convention. ref M. Kutter, S. Voloshynovskiy, and A. Herrigel. The Watermark Copy Attack. Proceedings of the SPIE, Security and Watermarking of Multimedia Contents II, Volume 3971, pages 371 379. San Jose, CA, 2000. ref In some scenarios, a digital watermark is added to a piece of Computer media media such as an image , film , or audio clip , to prove its authenticity. If a piece of media were presented and found to lack a watermark, it would be considered suspect. Alternatively, a security system could be devised which would limit a user s ability to manipulate any piece of media which contained a watermark. For instance, a DVD burner may prohibit making copies of a film which contained a watermark. The copy attack attempts to thwart the effectiveness of such systems by estimating the watermark given in an originally watermarked piece of media, and then adding that watermark to an un watermarked piece. In the first scenario listed above, this would allow an attacker to have an inauthentic image be declared authentic, since it contains a watermark. In the second scenario, an attacker could flood the market with content which ordinarily would allow a user to manipulate it as he saw fit, but due to the presence of the watermark, limitations would be imposed. In this way, schemes which sought to limit use of watermarked media may prove to be too unpopular for wide distribution. In a 2003 paper presented at the International Conference on Acoustics, Speech, and Signal Processing , ref J. Barr, B. Bradley, and B. Hannigan. http www.digimarc.com tech docs dmrc image signatures.pdf Using Digital Watermarks with Image Signatures to Mitigate the Threat of the Copy ... not authenticate it. References reflist Category Computer security exploits Category Watermarking ...   more details



  1. DWA

    DWA may refer to Companies and organisations Desert Water Agency US Digital Watermarking Alliance DreamWorks Animation , the NYSE stock symbol of their company Dutch Waterski Association Dallas World Aquarium German Association for Water, Waste Water and Waste www.dwa.de Deutsche Waggonbau AG , a former German railway manufacturer Other IBM Lotus Domino Web Access Domino Web Access IBM Lotus Dynamic window approach , a real time collision avoidance strategy Data Warehouse Administrator , the administrator of a data warehouse Designated Waiting Area Digital Waveform Acquisition Double Wrap Around Dangerous Wild Animals Act 1976 UK legislation controlling ownership of dangerous animals Humid continental climate with monsoonal influences hot, humid, rainy summers and cold, dry winters according to the Koppen climate classification disambig de DWA it DWA ...   more details



  1. Opaque predicate

    Orphan date November 2006 In computer programming , an opaque predicate is a Relation mathematics predicate &mdash an expression that evaluates to either true or false &mdash for which the outcome is known by the programmer a priori , but which, for a variety of reasons, still needs to be evaluated at Run time computing run time . Opaque predicates have been used as watermark s, as it will be identifiable in a program s executable. They can also be used to prevent an overzealous Compiler optimization optimizer from optimizing away a portion of a program. Another use is in Obfuscated code obfuscating the control flow of a program in order to make reverse engineering harder. External links http crypto.cs.mcgill.ca garboit sp paper.pdf A Method for Watermarking Java Programs via Opaque Predicates PDF compu prog stub Category Computer programming ...   more details



  1. Earl Levine

    Earl Levine developed streaming media and audio watermarking technologies during the dot com boom of the late 1990s. He worked at Vxtreme , Inc. until its acquisition by Microsoft , Inc. Following that he worked at Liquid Audio, Inc. Liquid Audio s patent portfolio was acquired by Microsoft, Inc. in 2002 http www.eweek.com article2 0,3959,899756,00.asp . Since his departure from Liquid Audio, he has been involved with numerous Silicon Valley start up companies. Fact date February 2007 He graduated from Richardson High School in the same class as Carla Overbeck . External links http projects.zillabit.com mouse2c.html MOUSE.MOVE http citeseer.ist.psu.edu levine95time.html Neural network data compression paper DEFAULTSORT Levine, Earl Category American inventors Category Computer specialist stubs Category Computer programmers Category Stanford University alumni Category Living people Compu bio stub ...   more details



  1. Intellectual property infringement

    An intellectual property infringement is the infringement or violation of an intellectual property right . There are several types of intellectual property rights, such as copyright s, patent s, and trademark s. Therefore, an intellectual property infringement may for instance be a Copyright infringement Patent infringement Trademark infringement Techniques to detect or deter intellectual property infringement include Fictitious entry , such as Fictitious dictionary entry. An example is Esquivalience included in the New Oxford American Dictionary NOAD Trap street , a fictitious street included on a map for the purpose of trapping potential copyright violators of the map Watermarking See also Code of non infringement Design around patent law Intellectual property violation in the People s Republic of China law stub Category Intellectual property law Infringement, intellectual property ...   more details



  1. For position only

    Other uses FPO disambiguation FPO In graphic design and printing , FPO pronunciation each letter is pronounced separately eff pee oh stands for for position only or for placement only . Blank placeholders or temporary low resolution illustrations are Digital watermarking watermark ed or stamped with the acronym FPO to indicate where the final version of an image is to be placed in the final file, film, or plate. FPO images are commonly used while the layout of a print project is being determined, and or when desired images are still to be scanned or photographed. They preserve the pagination that will be needed once the final images are added. In web design, FPO placeholder images provide a means for coders to finish building a website without waiting for final photographic assets. Rarely, an FPO image makes it into print through an error by the production staff. References Reflist Refimprove date March 2009 Category Printing terminology Category Web design design stub ...   more details



  1. Cinavia

    October 2010 List of Known Blu ray Releases with Cinavia Watermarking 2010 The Losers 2010 film The Losers ... Hornet List of Known DVD Releases with Cinavia Watermarking 2010 Takers 2011 The Tourist Battle LA ... Cinavia home page Category Digital rights management Category Digital watermarking Category ...   more details



  1. Gerry Kearby

    Gerald Gerry Kearby is an entrepreneur who rose to prominence during the Dot com bubble dot com boom of the late 1990s. He has worked predominantly with music and audio related electronics and software companies. He was previously co founder, CEO and President of Liquid Audio, Inc. ref http www.museresearch.com bio gerry kearby.php Bio at museresearch.com ref In that position, he testified before the US Congress regarding digital music distribution. ref http judiciary.senate.gov testimony.cfm?id 198&wit id 266 Digital music testimony before US Congress ref At Liquid Audio he also drove development of digital audio digital watermarking watermarking technology since acquired and used by Microsoft ref http www.eweek.com article2 0,3959,899756,00.asp eweek s article on Microsoft acquision of Liquid Audio ref At its peak, Liquid Audio had a market capitalization close to 1 billion. Prior to Liquid Audio, Mr. Kearby was co founder and Chief Executive Officer of Integrated Media Systems, a manufacturer of computer based professional audio equipment from June 1995 to December 1995. From January 1989 until June 1995, Mr. Kearby served as Vice President of Sales and Marketing at Studer Editech Corporation, a professional audio recording division of the Studer company. ref name Muse Research http www.museresearch.com about.php?id 11 Muse Research ref Kearby created some of the earliest versions of digital audio workstation product families working with Michael Newman product marketer . References references Persondata Metadata see Wikipedia Persondata . NAME Kearby, Gerry ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Kearby, Gerry Category Year of birth missing living people Category Living people Category Dot com people ...   more details



  1. Hardware obfuscation

    watermarking can be used in conjunction with hardware obfuscation. In an obfuscated design, watermarking ...   more details



  1. Digimarc

    watermarking plug in bundled with Adobe Photoshop, Corel, and Micrografix. ref http www.highbeam.com ... watermarking business and reincorporated as an Oregon company. ref cite news url http www.bizjournals.com ... Founding partner of the Digital Watermarking Alliance. ref http www.digitalwatermarkingalliance.org ...   more details



  1. File:Denver Pyle.JPG

    Summary Non free use rationale Article Denver Pyle Description Colorado born actor Denver Pyle as Jesse Duke in the Dukes of Hazzard Source Captured from Dukes of Hazzard TV snapshot using VLC Media Player by User Onelifefreak2007 Onelifefreak2007 Portion The entire photograph is used, straightened and with station identification watermarking removed. Low resolution The image is of much lower resolution than the original, and would not be mistaken for the original. Any copies made from this image would be of inferior quality. Purpose Primary means of identifying a notable person who is deceased in an educational arti,cle about that person as the primary means of visual identification of the subject of the article. Replaceability Copyrighted character and series by nature, no free version exists, it is unlikely that this image can be replaced with an uncopyrighted or freely copyrighted image of comparable educational value. other information Use of this image in the above article complies with Wikipedia Wikipedia Non free content non free content policy and fair use under fair use United States copyright law as described above. Non free use rationale Article Jesse Duke Description Colorado born actor Denver Pyle as Jesse Duke in the Dukes of Hazzard Source Captured from Dukes of Hazzard TV snapshot using VLC Media Player by User Onelifefreak2007 Onelifefreak2007 Portion The entire photograph is used, straightened and with station identification watermarking removed. Low resolution The image is of much lower resolution than the original, and would not be mistaken for the original. Any copies made from this image would be of inferior quality. Purpose Primary means of identifying a particular representation of a fictional character in an educational article about that character as the primary means of visual identification of the subject of the article. The image is of a notable person who is deceased. Replaceability Copyrighted character and series by nature, no free v ...   more details



  1. OpenPuff

    . Digital watermarking Watermarking is the action of signing a file with your copyright mark. This program ...   more details




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