Watermarking performance enhancement has always been a difficult task since the performance metrics of watermarking systems, i.e., fidelity, robustness, and payload size, inherently conflict with each other. Nowadays, most watermarking schemes hide payloads according to predefined rules or empirical perceptual models. Therefore, the performance of digital watermarking schemes can be determined ...

With the rapid development of the internet, copying a digital document is so easy and economically affordable that digital piracy is rampant. As a result, software protection has become a vital issue in current computer industry and a hot research topic. Software watermarking and obfuscation are techniques to protect software from unauthorized access, modification, and tampering. While software...

Digital watermarking (DWM) becomes a multidisciplinary research area involving theory of communications, signal processing, multimedia coding, information theory, cryptography, computer science and game theory etc. This chapter looks digital watermarking as an optimization problem from different combination of these areas. The goal is to resolve the conflicting requirements of different paramet...

Nowadays, there is an explosive growth in the digital multimedia creation, capturing, processing and distribution. Protecting the multimedia contents from copyright infringement has become a major concern. Encryption and watermarking are two complementary techniques that are used for protecting the multimedia data. In this paper, a proposed hybrid encryption-watermarking algorithm for copyright...

Watermarking is a valuable technique for verifying medical images obtained through the internet diagnosis. There greater need security in pictures with ever- increasing risks. This research presented Finite Ridgelet Transform (FRT)-Hessenberg based watermarking scheme images. The suggested paradigm divided into two stages. Before watermark insertion, FRT applied to coefficients are combined blo...

Recently we have witnessed great interest in watermarking technologies. Watermarking can be seen as a solution to overcome many security and authentication problems. Several watermarking methods have been proposed in the literature. In this paper, we review some of these techniques and their applications, properties, advantages and shortcomings. Moreover, we indicate that watermarking technolog...

Watermarking security has emerged in the last years as as a new subject in the watermarking area. As it brings new challenges to the design of watermarking systems, a good understanding of the problem is fundamental. This paper is intended to clarify the concepts related to watermarking security, provide an exhaustive literature overview, and serve as a starting point for newcomers interested i...

This article presents a detailed discussion of various aspects of watermarking technologies on applications ranging from the embedding of marks in the pictorial information on paper, to hardware protection. Included in the present discussion are the general concepts, motivation for watermarking, analog versus digital watermarking, various applications of watermarking such as paper marks, curren...

In this paper, we concentrate on the problem of robust watermarking in the presence of perceptual coding. We first present a watermarking approach called Robust Reference Watermarking (RRW) which can be incorporated into a broad class of watermarking algorithms to improve their performance. Through analysis of this scheme we demonstrate how embedding the watermark using a different perceptual m...

Most work on watermarking has resulted in techniques for different types of data: image, audio, video, text/language, software, etc. In this paper we discuss the watermarking of abstract structured aggregates of multiple types of content, such as multi-type/media documents. These semi-structures can be usually represented as graphs and are characterized by value lying both in the structure and ...