With the rapid growth of multimedia application, there has been significantly bared a crucial need for effective copyright protection mechanisms. Therefore, digital image, video, audio and text watermarking has recently become a very active research area of signal and information processing, as a solution to this problem. Many important issues have been pointed out, one of them being the robust...

Technology that combines a 2D BarCode with a digital watermark is a topic of great interest in current research related to the security field. This paper presents a new digital watermark method for the QR Code(Quick Response Code). An invisible watermark is embedded in the QR Code image using watermark technology, and while this is being done, the DCT intermediate frequency coefficients are com...

We describe a blind watermarking technique for digital images. Our technique constructs an image-dependent watermark in the discrete wavelet transform (DWT) domain and inserts the watermark in the most significant coefficients of the image. The watermarked coefficients are determined by using the hierarchical tree structure induced by the DWT, similar in concept to embedded zerotree wavelet (EZ...

This paper presents an efficient scheme for blind watermark estimation embedded using additive watermark embedding methods. The scheme exploits mutual independence between the host media and the embedded watermark and non-Gaussianity of the host media for watermark estimation. The proposed scheme employs the framework of independent component analysis (ICA) and poses the problem of watermark es...

The goal of zero-knowledge watermark detection is to allow a prover to soundly convince a verifier of the presence of a watermark in certain stego-data without revealing any information which the verifier can use to remove the watermark. Existing proposals do not achieve this goal in terms of definition (not formally zero-knowledge), security (unproven) and coverage (handle only blind watermark...

Recently, we proposed a method for constructing a template for efficient temporal synchronization in video watermarking. Our temporal synchronization method uses a state machine key generator for producing the watermark embedded in successive frames of video. A feature extractor allows the watermark key schedule to be content dependent, increasing the difficulty of copy and ownership attacks. I...

Digital watermarking has recently emerged as an important area of research to protect the copyright of multimedia and internet data. Most of other literatures focus on the algorithms of embedding one-dimensional watermarks or twodimensional binary digital watermarks. In this work, a robust method of embedding a gray-level digital watermark into an image is proposed. A gray-level digital waterma...

This paper describes a new method for video watermark embedding, using the knowledges already available from watermark embedding into digital static pictures. The watermark is embedded in transformed domain using Discrete Wavelet Transform (DWT). This paper also describes experiments conducted on the proposed watermark embedding method. The goal of these experiments was the test the robustness ...

In this paper, a quantization based watermark casting and blind watermark retrieval algorithm operating in YCbCr color space using discrete wavelet transform (DWT), for ownership verification and image authentication applications is implemented. This method uses implicit visual masking by inserting watermark bits into only the wavelet coefficients of high magnitude, in Y channel of YCbCr color ...