نتایج جستجو برای: multiplicative video watermarking

تعداد نتایج: 193693  

2009
Elias Kougianos Saraju P. Mohanty Dhiraj K. Pradhan

We present a novel algorithm, architecture, and high-level Simulink prototyping for visible watermarking of MPEG-4 video streams. The watermark is inserted in the video stream during compression, resulting in an optimized compression/watermarking algorithm and system. Discrete Cosine Transform (DCT) watermarking, due to its robust nature, was chosen in this work to accomplish MPEG-4 video copyr...

2003
Gwenaël J. Doërr Jean-Luc Dugelay

Straightforward adaptations of results for still images watermarking have led to non-secure video watermarking algorithms. The very specific nature of digital video has indeed to be considered so that robustness and security issues are handled efficiently. As a result, a novel video watermarking scheme is presented in this paper: security is achieved by using a smooth time-dependent strength an...

2013
Loganathan Agilandeeswari Kumaravel Muralibabu

In this paper we proposed a novel video watermarking technique using Discrete Wavelet Transform and Singular Value Decomposition based on subband selection procedure. To increase the level of authentication, the two watermarks are used: one is the original watermark and the other is the owners’ fingerprint. These two watermarks are embedded into the cover video based on the subband selection sc...

2017
JAKOB WASSERMANN ANDRZEJ DZIECH

Watermarking technology.play a central role in the digital right management for multimedia data. Especially a video watermarking is a real challenge, because of very high compression ratio (about 1:200). Normally the watermarks can barely survive such massive attacks, despite very sophisticated embedding strategies. It can only work with a sufficient error correcting code method. In this paper,...

2009
A. Essaouabi F. Regragui

A novel video watermarking system operating in the three-dimensional wavelet transform is here presented. Specifically the video sequence is partitioned into spatiotemporal units and the single shots are projected onto the 3D wavelet domain. first a grayscale watermark image is decomposed into a series of bitplanes that are preprocessed with a random location matrix. after that the preprocessed...

Journal: :IEEE Journal on Selected Areas in Communications 1998
Mitchell D. Swanson Bin B. Zhu Ahmed H. Tewfik

We present a watermarking procedure to embed copyright protection into digital video. Our watermarking procedure is scene-based and video dependent. It directly exploits spatial masking, frequency masking, and temporal properties to embed an invisible and robust watermark. The watermark consists of static and dynamic temporal components that are generated from a temporal wavelet transform of th...

Journal: :CoRR 2014
T. Srinivasa Rao Rajasekhar R. Kurra

Video Watermarking serves as a new technology mainly used to provide security to the illegal distribution of digital video over the web. The purpose of any video watermarking scheme is to embed extra information into video in such a way that must be perceptually undetectable while still holding enough information in order to extract the watermark beginning with the resultant video. Information ...

1997
Mitchell D. Swanson Bin B. Zhu Ahmed H. Tewfik

We introduce a watermarking procedure to embed copyright protection into digital video. Our video dependent watermarking procedure directly exploits masking and temporal properties to embed an invisible and robust watermark. The watermark consists of static and dynamic temporal components that are generated from a temporal wavelet transform of the video scenes. To generate the watermark, the re...

2011
Wenyi Wang

Digital watermarking of multimedia content has been proposed as a method for different applications such as copyright protection, content authentication, transaction tracking and data hiding. In this thesis, we propose a lossless watermarking approach based on Discrete Cosine Transform (DCT) for a new application of watermarking. A depth map obtained from a stereoscopic image pair is embedded i...

2004
Shalin P. Trivedi Rajarathnam Chandramouli

Kernel Fisher discriminant for steganalysis of JPEG hiding methods p. 13 On estimation of secret message length in LSB steganography in spatial domain p. 23 Steganalysis using color wavelet statistics and one-class support vector machines p. 35 Steganalysis using modified pixel comparison and complexity measure p. 46 Performance evaluation of blind steganalysis classifiers p. 58 Searching for t...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید