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The possibility of adding several watermarks to the same image would enable many interesting applications such as multimedia document tracing, data usage monitoring, and multiple property management. In this paper, we present a novel watermarking scheme, which allows inserting and reliably detecting multiple watermarks sequentially embedded into a digital image. The proposed method, based on elementary linear algebra, is asymmetric, secure under projection attack and robust against distortion due to basic operations such as storage, transmissio ....etc

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Abstract
Digital watermarking is the process of possibly irreversibly embedding information into a digital signal. The signal may be audio, pictures or video, for example. If the signal is copied, then the information is also carried in the copy,An important application of invisible watermarking is to copyright protection systems, which are intended to prevent or deter unauthorized copying of digital media

In this proposed algorithm, according to the size of the image we have to multiply the hadamard coefficient(Hn).In fut ....etc

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http://seminarsprojects.net/Thread-a-robust-digital-image-watermarking-algorithm-using-dna-sequences

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To get full information or details of digital image watermarking please have a look on the pages

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http://seminarsprojects.net/Thread-digital-watermarking--5450

http://seminarsprojects.net/Thread-digital-watermarking-full-seminars-report-download?pid=20966

http://seminarsprojects.net/Thread-digital-watermarking-full-seminar-report-download?pid=72414

http://seminarsprojects.net/Thread-digital-watermarking-algorithms-and-applications

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With the advent of internet, creation and delivery of digital data (images, video and audio files, digital repositories and libraries, web publishing) has grown many fold. Along with it, issues like protection of rights of content and proving ownership arises. Steganography is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, has the knowledge of the existence of the message, a form of security through obscurity. Watermarking, a part of steganography is often applied for prot ....etc

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Introduction
Steganography is derived from the Greek for covered writing and essentially means to hide
in plain sight. As defined by Cachin steganography is the art and science of
communicating in such a way that the presence of a message cannot be detected. Simple
steganographic techniques have been in use for hundreds of years, but with the increasing
use of files in an electronic format new techniques for information hiding have become
possible.
This document will examine some early examples of steganography and the general ....etc

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