نتایج جستجو برای: multiplicative video watermarking
تعداد نتایج: 193693 فیلتر نتایج به سال:
In this paper, a digital video watermarking algorithm is proposed. We present a novel DWT-based blind digital video watermarking scheme with scrambled watermark and error correcting code. Our scheme embeds different parts of a single watermark into different scenes of a video under the wavelet domain. To increase robustness of the scheme, the watermark is refined by the error correcting code, w...
Due to the explosion of data exchange on the Internet and the extensive use of digital media, it has been of intense interest to digital data owners in multimedia security and multimedia copyright protection. In this paper, a comprehensive approach for protecting and managing video copyrights with watermarking techniques is introduced. We propose a novel digital video watermarking scheme based ...
Digital Watermarking may be a technology used for the copyright protection of digital applications. During this paper, a comprehensive approach for watermarking digital video is introduced, and a hybrid digital video watermarking scheme based on Discrete Wavelet Transform (DWT) and Principal Component Analysis (PCA). PCA helps in reducing correlation among the wavelet coefficients obtained from...
In rapid growth of network distributions of images and video, there is an imperative need for copyright protection, besides pirating. Different digital image and video watermarking schemes have been proposed to deal with this matter of ownership identification. The video watermarking schemes using discrete wavelet are transformed to keep the copyright of digital videos. The input video sequence...
Digital watermarking was introduced at the end of the 20th century to provide means of enforcing copyright protection once the use and distribution of digital multimedia data have exploded. This technology has first been intensively investigated for still images and recent efforts have been put to exhibit unifying characteristics. On the other hand, the situation is rather different in the cont...
In this paper we investigate a watermarking application for bookmarking of video content using a mobile phone’s camera. A content identifier and time-stamp information are embedded in individual video frames and decoded from a single frame captured from a display device, allowing to remember (’bookmark’) scenes in the video. We propose a simple watermarking scheme and blind image registration t...
In this paper we present a novel switching function for multiplicative watermarking systems. The is based on the algebraic structure of elliptic curves over finite fields. resulting allows both generator and remover to define appropriate system parameters, sharing only limited information, namely private key. We prove that parameters lead stable scheme.
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...
Due to the rapid growth of internet and technology, protecting digital data is becoming very urgent. In this paper a novel watermarking technique is proposed where both visible and invisible watermarks are embedded in a video. Digital data can be copied easily without any degradation in quality, so the protection of the data is necessary. Digital watermarking is a technology to embed additional...
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