We describe a scheme for watermarking natural language text by embedding small portions
of the watermark bit string in the syntactic structure of a number of selected sentences in the …

In this paper a new technique of dual image watermarking is proposed for protection of
ownership rights which utilizes salient properties of homomorphic transform (HT), discrete …

We focus on visually meaningful color image watermarks, we construct a new digital
watermarking scheme based on the discrete cosine transformation. The proposed method …

Semifragile watermarking techniques aim to prevent tampering and fraudulent use of
modified images. A semifragile watermark monitors the integrity of the content of the image …

A new robust method of non-blind image watermarking is proposed in this paper. The
suggested method is performed by modification on singular value decomposition (SVD) of …

During the last years, the world is rapidly becoming digital in many aspects. Among the most
interesting of these aspects is multimedia. Many new technologies have come into our lives …

This paper presents a novel noise-robust scheme for watermark embedding and extraction,
applicable on the broad scientific field of information security, including digital encryption for …

Digital watermarking is an essential tool for numerous applications, and the quality of
watermarked images must be assessed using accurate criteria. Peak Signal-to-Noise Ratio …

The copyright protection of digital images is a critical element for multimedia applications on
Web, electronic libraries and virtual image galleries. Since the middle of the nineties, digital …

The payload increase of watermarking channels via the use of low-density parity check
(LDPC) codes is considered. The bit error rate and payload size problem is addressed in the …