STUDY OF MULTIMEDIA WATERMARKING TECHNIQUES (original) (raw)

Digital Watermarking Applicationin Multimedia Security

—Nowadays the development and many applications in multimedia and network technologies gave us some problems, so the common problem is the protection of the content of multimedia such as audio, image, and video. The copyright protection and authentication, digital watermarking has obtained wide important application and growth that happened in technology, the digital watermark technology has obtained swift development in the aspects of copyright protection and integrity certification of multimedia information. We will make an overview on the digital watermarking technology, in this paper the copyright authentication scheme that applied in WWW is proposed and how it used in the watermark application also the current algorithms can validate the watermark authenticity, and use technologies such as time stamp to judge the embedding time. Watermark server can be used as a certification center about the trusted third party. We see the digital watermark will be used in many applications and become more important in the electronic commerce, distance training and more application.

Recent Digital Watermarking Approaches, Protecting Multimedia Data Ownership

As the internet networks are proliferating and diversifying across the globe, the accessibility of digital multimedia contents such as images, audios and videos become more frequent. Digital watermarking approaches ensure data authentication, ownership protection and security of digital data. This paper includes of assorted techniques of embedding and extracting watermarks, applied in time-domain/spatial-domain and transform-domain of transmission signal. It imbibes all the ideas of digital watermarking. It starts with the overview, classification, application, possible attacks, limitations, performance analysis and comparative study among various watermarking techniques. Genetic Algorithm approaches are also our primary concern so as to ameliorate each the fidelity and robustness of multimedia data. Audio watermarking is our vital survey area.

ANALYSIS OF DIGITAL WATERMARKING SCHEMES FOR SECURING DIGITAL MEDIA

With the proliferation of digitized media, the need of digital watermarks as a copyright protection, ownership identification and a secure way of embedding information has become important. A useful watermark technique should be robust against malicious at tacks or tampering to remove the watermark and should not greatly affect the quality of the original file. Every watermarking system has two main parts: watermark embedding and watermark extraction/decoction. In conventional cryptographic systems, once the information is decrypted, the recipient can misuse it. The reproduction and retransmission cannot be tracked easily. In this dissertation thesis, selected major watermarking techniques are investigated for digital image as well as audio files. The selecti on was carried out after intensive study and feasibility checking of latest available techniques. The robustness and effectiveness of these watermarking techniques are tested both quantitatively and qualitatively. The results obtained after experimental st udy of watermarking of, digital image for LSB technique in image - image, image - text and circular watermarking technique, digital audio for Echo hiding, amplitude modulation, and high frequency modulation are more than satisfactory. The watermark has been em bedded and extracted successfully without affecting the quality of original file in noticeable extent.

Efficient Watermarking Technique for Digital Media (Images and Videos)

In This Paper we are going to purpose an efficient Watermarking Technique for Digital Media Content Protection and Copyright Protection. Watermarking is a technique to embed hidden and unnoticeable signal into digital media in such a way that if an intruder wants to copy it, he can be caught on the basis of Copyright protection and Ownership Identification. There are many Techniques that are available to watermark the data, In our purposal we are discussing DWT Technique which is most robust to attacks rather than LSB for the protection of Digital Images. We will try to find the Quality loss after the addition of watermark after applying various attacks on Watermarked Image, the more the quality loss will be there lesser will be the efficiency of Watermarking. There will be Many Factors that can effect the quality of the Images after the addition of Watermarking that are discussed in Later Section. The Creating on GUI and Implementation of our purposed Algorithm will be realized usi...

Multimedia watermarking techniques

Proceedings of the IEEE, 2002

Multimedia watermarking technology has evolved very quickly during the last few years. A digital watermark is information that is imperceptibly and robustly embedded in the host data such that it cannot be removed. A watermark typically contains information about the origin, status, or recipient of the host data. In this tutorial paper, the requirements and applications for watermarking are reviewed. Applications include copyright protection, data monitoring, and data tracking. The basic concepts of watermarking systems are outlined and illustrated with proposed watermarking methods for images, video, audio, text documents, and other media. Robustness and security aspects are discussed in detail. Finally, a few remarks are made about the state of the art and possible future developments in watermarking technology.

Protection of Digital Data by Watermarking

The watermarking of digital image, audio, video and multimedia products in general have been proposed for resolving copyright ownership and verifying boldness of content. This paper studies the contribution of watermarking for developing the protection scheme. Wolfgang and Delp Algorithm (Technique) is used in case of watermark Embedding. The algorithm proposed the scheme of watermarking by encrypting the watermark images using symmetric encryption like DES. According to the method, the watermark symbol to be encrypted first using DES and then embedding it into RGB vectors of original image using SVD transformation sampling. The experiment justifies that the algorithm of embedding watermark has better robustness to JPEG compression attack. Piper diagram is ploted by the aquaChem 2011.1 software.

Multimedia Protection, Authentication and Advanced Digital Watermarking Techniques: A Survey

Multimedia contents such as images, videos, audio, and texts are easy to available for download through internet in worldwide. Duplication of multimedia contents is to create using different software. This type of operation some time created problem of copyright and ownership authentication. Digital watermarking techniques are usedto protect multimedia contents. This paper gives various watermarking techniques in transform domain and sparse domain for protection andauthentication of multimedia contents

Digital watermarking of images towards content protection

2010

With the rapid growth of the internet and digital media techniques over the last decade, multimedia data such as images, video and audio can easily be copied, altered and distributed over the internet without any loss in quality. Therefore, protection of ownership of multimedia data has become a very significant and challenging issue. Three novel image watermarking algorithms have been designed and implemented for copyright protection. The first proposed algorithm is based on embedding multiple

Paper on Video Watermarking Techniques

2013

The protection and illegal redistribution of digital media has become an important issue in the digital era. This is due to the popularity and accessibility of the Internet now a days by people. This results in recording, editing and replication of multimedia contents. Digital watermarking can be used to protect digital information against illegal manipulations and distributions. Digital watermarking technique is the process of embedding noise-tolerant signal such as audio or image data in the carrier signal. This technique provides a robust solution to the problem of intellectual property rights for online contents. This paper reviews different aspects and techniques of digital watermarking for protecting digital contents. .

Digital Watermarking: Applications, Techniques and Attacks

International Journal of Computer Applications, 2012

As information transmission technology progresses, the technology to protect data from unauthorized users also needs to be enhanced. Data can be plagiarized, modified, deleted etc without proper authentication and authorization. Various security mechanisms have evolved that enhances the security of digital media. Each technology to be applied successfully should ensure a balance between the three pillars of security; confidentiality, integrity and availability. Digital watermarking is one such technique. It is a mechanism to monitor the digital media with the help of information residing within the content itself. To put it simply, digital watermarking is embedding of information into source content that can be detected and extracted. Digital watermarking can be applied to media like text, audio, image, video etc. This paper provides a comprehensive idea behind this technology and its usage.