Copyright hacking and piracy have increased as the Internet has grown in popularity access to multimedia material increased. Security, property protection, authentication all been achieved via watermarking techniques. This paper presents a summary of some recent efforts on video techniques, with an emphasis studies from 2018 2022, well various approaches, achievements, attacks utilized testing ...

This paper investigates the multiplicative spread spectrum watermarking method for the image. The information bit is spreaded into middle-frequency Discrete Cosine Transform (DCT) coefficients of each block of an image using a generated pseudo-random sequence. Unlike the conventional signal modeling, we suppose that both signal and noise are distributed with Laplacian distribution because the s...

Digital video is a group of moving visual images, text and sounds. The popularity of using digital video in Internet leads to illicit copying and dispersal of content. In order to avoid this, video watermarking technique are used as a preventive measure for illegal copying of copyrighted material. In this paper, watermarking algorithm for identification of optimal frames and embedding of nested...

Video watermarking is relatively a new technology that has been proposed to solve the problem of illegal manipulation and distribution of digital video. It is the process of embedding copyright information in video bit streams. In this paper, we propose two effective, robust and imperceptible video watermarking algorithms. The two algorithms are based on the algebraic transform of Singular Valu...

Error-resilient variable length codes (VLCs) have been proposed to counter bit errors over error-prone channels. In this work we establish a linkage between channel coding and watermarking by observing that watermark bits are, in effect, intentional bit errors. Using a recently introduced resynchronizing VLC, we have developed a compressed-domain watermarking algorithm where the inherent errorr...

It is the expansion of internet that has increased the availability & uses of digital data like video, audio, image to the world. Therefore copyright protection of digital data is an important research issue of information security. This paper presents a review of some influential work in the area of digital watermarking technique and main contribution in this field such as categories of digita...

one of the most favored way to lessen data complexity is to conceal details or redundant information. Watermarking is a technique which consists in inserting a robust and imperceptible brand in a host image, in order to defend it against illegal plagiarism. Being reversible, the watermarking information like numbers, texts and images can be embedded digital media formats such as Audio, Video an...

MPEG4, ITU-T and H.26x [6, 5]. Wavelet transform (DWT) has been adopted to accomplish information hiding without losing much visual quality [7]. Chan [8] proposed a video watermarking technique in the compressed domain based on hybrid DWT and audio information to secure the watermarking system. The watermarks are embedded in the bit plane of DWT coefficients. Kong [9] developed an object-based ...