Authentication of Script Format Documents Using Watermarking Techniques
نویسندگان
چکیده
The electronic document authentication is a subject of active research because, with the release of very efficient program for documents, images and video processing, the manipulation of such digital content becomes easier. Then, the development of efficient methods allowing the protection of sensitive digital material, avoiding unauthorized manipulations, without degradation of the original materials is a very important task that has found application in the solution of many practical problems in the financial, banking, insurances, legal, and Government fields, among others.
منابع مشابه
Script format document authentication scheme based on watermarking techniques
In almost all watermarking-based document authentication systems, the documents are considered as binary images and then, the watermark is embedded using some image watermarking algorithm. However actually important documents are saved using document file formats, such as Portable Document Format (PDF) or Open Document Format (ODF), among others, because in general the file size is smaller comp...
متن کاملMultimedia document authentication using on-line signatures as watermarks
Authentication of digital documents is an important concern as digital documents are replacing the traditional paper-based documents for official and legal purposes. This is especially true in the case of documents that are exchanged over the Internet, which could be accessed and modified by intruders. The most popular methods used for authentication of digital documents are public key encrypti...
متن کاملCopyright Protection of Multimedia Documents: from Theory to Application
Transmission, manipulation and storage of images in digital format is rapidly becoming an everyday practice. Desktop publishing, digital libraries, image databases and the World Wide Web are only some of the application areas that are strongly related to digital imaging technology. The new digital, networked environment necessitates the development of robust and trustworthy encryption, authenti...
متن کاملPerformance Comparison of Semifragile Watermarking Methods for Image Authentication
Data authentication is one of the primary requisites in present day communication systems. In image processing, data authentication is implemented by using watermarking techniques. The specific interest in semifragile watermarking algorithms arises from the multitude of practical and commercial applications, where content needs to be strictly protected, but the exact representation during excha...
متن کاملAn Erasable Watermarking Scheme Based on Text Exact Authentication
It is becoming easier and easier to tamper with digital Works in ways that are difficult to detect. The problem of authentication has been well studied. This paper proposes a novel erasable text watermarking scheme for exact authentication, which including authentication of content and format of Chinese Word documents. In this method, the cover document is divided into two blocks by utilizing t...
متن کامل