Digital watermarking [1] is the act of hiding information in multimedia data, for the purposes of content protection or authentication. In ordinary digital watermarking, the secret information is embedded into the multimedia data (cover data) with minimum distortion of the cover data. Due to these watermarking techniques the watermark image is almost negligible visible. In this paper we will di...

Medical image watermarking is a special branch of image watermarking. The main use of medical image watermarking is for authentication and tamper detection. In addition, it is used to insert the related electronic patient record (EPR) into the medical image. The objective of this paper is to conduct a research of medical image properties and applications. In addition, some of medical image wate...

Text information is a natural language dependent, which enhances reliability and security of text data exchanged through Internet networks becoming main concern for researchers. Content authentication, Tampering detection, integrity verification digital content are considered challenges in the communication exchange area Internet. Watermarking algorithms emerge as potential method achieving thi...

Together with an explosive growth in the use of internet and high speed computer networks; the use of digitally formatted data has increased many folds i.e. the data can be easily plagiarized, modified or deleted without proper authentication and authorization. This has led to a need for effective copyright protection tools. Digital Watermarking promises to address these issues. This paper give...

With the tremendous expansion of the Internet and multimedia technologies in the recent past, digital media is being manipulated more frequently. Digital watermarking technologies are one of the best solutions for authentication and copyright protection of digital data. In this paper, we applied our lossless image authentication technique on different datasets, random images and also on differe...

Digital watermarking is a nascent but promising technology that offers protection of unencrypted digital content. This paper is a brief technical survey of the multimedia watermarking landscape. The three main technical challenges faced by watermarking algorithms are fidelity, robustness and security. Current watermarking methods offer possibly acceptable fidelity and robustness against certain...

We consider the information theoretical capacity of the network flow watermarking problem. Finding capacity bounds of the watermarking problem can lead to compare different watermarking schemes and help in designing more efficient network flow watermarks.

Image watermarking is an important aspect of the security of data. The robustness of watermarking and the capacity of the watermarking process are the main research area for researcher. The watermarking including encryption technique is the main aim of this paper. Discrete Wavelet Transform has been used for the watermarking and PN sequence based random sequence is used for the encryption of th...

Adam Brickman EE381K Multidimensional Signal Processing March 24, 2003 Abstract Watermarking audio files has recently become the focus of much attention. This is primarily due to faster data transmission rates on the Internet, which has allowed the often illegal proliferation of digital audio files. Watermarking may give recording companies the ability to enforce copyright protection of their p...

This paper gives the overview of audio and video watermarking. This paper introduces the basic requirements that affect the algorithms for audio and video watermarking which are perceptibility, robustness and security. The attacks which cause manipulations of the audio and video signals are also discussed. The common group of attacks on audio and video data is dynamics, filtering, conversion, c...