Digital content piracy is one of the major crimes in the present world. Protection of digital content like music, video and images has become a major problem. Watermarking is one of the methods to protect digital content against unauthorized copying. In watermarking procedure, generally, watermark is embedded before it is going to be distributed over different communication channels. This paper...

With the development of computers and the Internet, digital multimedia can be distributed and pirated easily. Watermarking is a useful technique for multimedia copyright protection. In this paper, we develop a robust video watermarking system. It consists of two components, i.e., watermarking embedder and watermarking detector. In the embedder, we insert a watermark pattern into video frames ac...

This paper proposes a zero-video watermark scheme based on 2D-DWT and pseudo 3D-DCT, otherwise Singular Value Decomposition and log-polar transform are applied. The method makes no changes to original images while embedding the owner information of images so as to achieve high transparency. The log-polar transform ensures that the method is robust to rotation operations. In order to achieve the...

In this paper a new watermarking scheme is presented based on log-average luminance. A colored-image is divided into blocks after converting the RGB colored image to YCbCr color space. A monochrome image of 1024 bytes is used as the watermark. To embed the watermark, 16 blocks of size 8X8 are selected and used to embed the watermark image into the original image. The selected blocks are chosen ...

In recent years, data protection is one of important aspect because of cases like piracy, copyright and ownership issues. Digital watermark seems to be solution to the problem. In our paper, we proposed a method of invisible watermark to medical image using Biorthogonal wavelet filter and transformed domain watermark embedding. Generally watermark is embedded in original image either directly o...

Robustness of an image watermarking scheme is the ability to detect the watermark after intentional attacks and normal audio/visual processes. A DWT image watermarking paper embeds a PRN sequence as a watermark in three bands, excluding the low pass subband, using coefficients that are higher than a given threshold T1. During watermark detection, all the coefficients higher than another thresho...

This paper describes a novel transform domain oblivious image watermarking method that combines FuzzyART clustering and image normalization to design a watermarking system that is robust to any type of attacks like geometric attacks, jpeg compression, noise attacks and other image processing attacks. The use of Fuzzy ART clustering as a pre-processing step helps in the accurate selection of loc...

This paper addresses implementation issues for real-time watermark embedding scheme of High Definition(HD) resolution videos on personal computers. In most watermark applications, an embedding procedure should be built at low costs and at the same time the embedded watermarks should have robustness against signal and image processing as well as malicious attacks. This paper provides some perfor...

In this paper, we present zero-watermarking technique for medical image based on thinning file in order to ensure the authenticity and integrity of the medical images. Medical images, different of other images, require careful attention when hiding watermark information within them because the watermark bits may be affect on the region of interest (ROI) and misdiagnose. Therefore, zero-watermar...

In this paper we investigate robust watermarking integrated with H.264/SVC video coding and address coarse-grain quality and spatial resolution scalability features according to Annex G of the H.264 standard. We show that watermark embedding in the base layer of the video is insufficient to protect the decoded video content when enhancements layers are employed. The problem is mitigated by a pr...