Digital Watermarking Schemes for Multimedia Authentication

2008 ◽  
pp. 793-808
Author(s):  
C. T. Li
Keyword(s):  
Digital Watermarking ◽  
Tamper Localization ◽  
Multimedia Processing ◽  
Digital Multimedia ◽  
Interconnected Networks ◽  
Multimedia Authentication ◽  
Embedding Distortion ◽  
Technical Area

As the interconnected networks for instant transaction prevail and the power of digital multimedia processing tools for perfect duplication and manipulation increases, forgery and impersonation become major concerns of the information era. This chapter is intended to disseminate the concept of digital watermarking for multimedia authentication. Issues and challenges, such as security, resolution of tamper localization, and embedding distortion, of this technical area are explained first. Three main categories of watermarking approaches, namely fragile, semi-fragile, and reversible schemes, to the issues and challenges are then presented. Merits and limitations of specific schemes of each category are also reviewed and compared.

Digital Watermarking Schemes for Multimedia Authentication

2011 ◽  
pp. 30-51 ◽  
Author(s):  
Chang-Tsun Li
Keyword(s):  
Digital Watermarking ◽  
Tamper Localization ◽  
Multimedia Processing ◽  
Digital Multimedia ◽  
Interconnected Networks ◽  
Multimedia Authentication ◽  
Embedding Distortion ◽  
Technical Area

As the interconnected networks for instant transaction prevail and the power of digital multimedia processing tools for perfect duplication and manipulation increases, forgery and impersonation become major concerns of the information era. This chapter is intended to disseminate the concept of digital watermarking for multimedia authentication. Issues and challenges, such as security, resolution of tamper localization, and embedding distortion, of this technical area are explained first. Three main categories of watermarking approaches, namely fragile, semi-fragile, and reversible schemes, to the issues and challenges are then presented. Merits and limitations of specific schemes of each category are also reviewed and compared.

Two Spatial Watermarking Techniques for Digital Images

2013 ◽  
pp. 691-712
Author(s):  
Dumitru Dan Burdescu ◽  
Liana Stanescu ◽  
Marian Cristian Mihaescu
Keyword(s):  
Digital Watermarking ◽  
Copyright Protection ◽  
Digital Images ◽  
Multimedia Data ◽  
Effective Measure ◽  
Digital Multimedia ◽  
Black And White ◽  
Robust Watermark ◽  
Multimedia Technologies ◽  
New Algorithms

The rapid growth of digital multimedia technologies brings tremendous attention to the field of digital authentication. Digital watermarking has become widely recognized as an effective measure for copyright protection of multimedia data. The owner or the distributor of the digital images can insert a unique watermark into copies for different customers or receivers, which will be helpful to identify the source of illegal copies. In this chapter the authors present two original spatial authentication techniques for digital images. These new algorithms yield an invisible watermark that is robust to various kinds of attacks. The main principle is the utilization of a virtual (2D or 3D) graph embedded into the digital images. Then, the colors of some vertices of the virtual graph are slightly modified for obtaining the watermark. The proposed techniques modify pixels or voxels of the object by a spatial watermark insertion scheme. These techniques can be used for all kinds of digital images, color or black and white, and the new algorithms produce an invisible robust watermark. The techniques lower the computational complexity that normally rises with the traditional watermarking algorithms. This approach reduces computation and implementation complexity of the algorithms. These techniques seem to replace advantages of the transform domain techniques with those of the spatial domain techniques.

A Unified Approach towards Multimedia Watermarking

2013 ◽  
pp. 376-399
Author(s):  
Ali Al-Haj ◽  
Ahmad Mohammad ◽  
Samir Abou El-Seoud ◽  
Tuqa Manasrah ◽  
Lama Rajab ◽  
...  
Keyword(s):  
Digital Media ◽  
Digital Watermarking ◽  
Singular Values ◽  
Discrete Wavelet ◽  
Digital Multimedia ◽  
Copyright Violation ◽  
The Media ◽  
Value Decomposition ◽  
Multimedia Watermarking ◽  
Dual Transform

The tremendous advancement of digital technology has increased the ease with which digital multimedia signals (image, video, audio) are stored, transmitted, and reproduced. Consequently, the content providers and owners are faced with problems of protection against copyright violation and other forms of abuse to their digital property. Digital watermarking has been proposed in the last decade as a solution to prevent illegal and malicious copying and distribution of digital media by embedding an unnoticeable information into the media content. This chapter describes three imperceptible and robust watermarking algorithms for different types of multimedia objects (image, video, audio). The three algorithms are based on cascading two powerful mathematical transforms; the Discrete Wavelet Transform (DWT), and the Singular Value Decomposition (SVD). The two transforms are different, and thus provide complementary levels of robustness against the same attack. In the proposed dual-transform algorithms, the watermark bits are not embedded directly on the wavelet coefficients, but rather on the elements of singular values of the DWT sub-bands of the multimedia object. Effectiveness of the proposed algorithms is demonstrated through extensive experimentation.

scholarly journals Mitigation of Geometrical Attack in Digital Image Watermarking using Different Transform Based Functions

2019 ◽  
Vol 8 (9) ◽  
pp. 3387-3396
Keyword(s):  
Digital Watermarking ◽  
Value Of Information ◽  
Image Watermarking ◽  
Multimedia Data ◽  
Digital Data ◽  
Data Loss ◽  
Digital Multimedia ◽  
Fast Processing ◽  
Current Scenario ◽  
Geometrical Attack

The illegal act of digital multimedia data loss the value of information and integrity. The loss of information and integrity born the process of piracy of digital data. The piracy of digital data loss the brand value of documents and products. For the prevention of piracy used the digital watermarking technique. The digital watermarking techniques provide copyright protection and increase the value of brands — Watermarking techniques used in various fields such as image, video, audio, and text. The process of watermarking techniques proceeds in two manners spatial domain and frequency domain. The processing of frequency based watermarking techniques is roughest and fast processing of watermarking. Now in the current scenario, various transform function is used for the embedding process of watermarking techniques. In this approach present the studied of digital watermarking techniques based-on different transform function such as DCT, DWT, FFT, and many more transform function. The transform function based watermarking techniques faced a problem of geometrical attack. The Geometrical attack deforms the watermark and gets information. The prevention of watermarking techniques against the Geometrical attacks is a big challenge for the researcher in the field of digital watermarking.

Security in Digital Images

2015 ◽  
pp. 381-394
Author(s):  
Mohammed A. Otair
Keyword(s):  
Intellectual Property ◽  
Image Encryption ◽  
Intellectual Property Rights ◽  
Digital Watermarking ◽  
Digital Images ◽  
Image Steganography ◽  
The Internet ◽  
Digital Multimedia ◽  
Security Levels ◽  
Illegal Copying

Due to the swift growth of the using of the digital multimedia in the internet these days, the security in digital images has become a very important issue. Lately, significant attentions are given by many researchers in the field of the security for digital images, and several image encryption techniques have been developed to improve the security levels of these images. Different techniques can be applied to protect intellectual property rights for digital images and prohibit illegal copying. The aim of this chapter is to introduce the most important techniques that have been developed to implement the security in digital images such as digital watermarking and image steganography.

A Print-Scan Resilient Watermarking Scheme Based on the Numbers of the DCT Positive and Negative Coefficients

2013 ◽  
Vol 310 ◽  
pp. 650-655
Author(s):  
Yun Fei Jiang ◽  
Yong Gang Fu
Keyword(s):  
Digital Watermarking ◽  
Copyright Protection ◽  
The Internet ◽  
Trade Off ◽  
Digital Multimedia ◽  
Positive And Negative Coefficients ◽  
Watermarking Scheme

Copyright protection has drawn much attentions especially in the advent of computer and the internet. Illagal copying of digital multimedia has been much easier because of widely using of the modern technologies.This paper proposes a novel digital watermarking algorithm based on the numbers of the blocked middle DCT positive and negative coefficients. Embedding watermark into the middle frequency of DCT is a perfect idea and it can receive a trade-off between robustness and imperceptibility.We utilized the embedding strength to get a balance between their robustness and imperceptibility. The results show that the algorithm is robust to print and scan process.

scholarly journals Design of a Hybrid Digital Watermarking Algorithm with High Robustness

2020 ◽  
Author(s):  
Yi Xie ◽  
Yulin Wang ◽  
Maode Ma
Keyword(s):  
Digital Watermarking ◽  
Singular Value ◽  
The Internet ◽  
Discrete Wavelet ◽  
Magic Square ◽  
Digital Multimedia ◽  
Security Scheme ◽  
Simulation Based ◽  
Simulation Results ◽  
Value Decomposition

With the development of the Internet, storage and transmission technologies such as printers and scanners, digital multimedia products are rapidly transmitted through the Internet broadcasting, multimedia works becoming easy to obtain and illegally tampering and copying. The copyright of media works urgently needs to be protected. As an important information security scheme, digital watermarking technology provides a powerful solution to the protection of multimedia works. In this paper, we propose an image digital watermarking algorithm combining discrete wavelet transform, discrete cosine transform and matrix singular value decomposition and new scrambling technique. Furthermore, to improve the robustness of the algorithm, grayscale scrambling and pseudo magic square transform are used. To evaluate our proposed algorithm, we realize the simulation based on Python 3.7.  All the simulation results show that our proposed algorithm has strong imperceptibility and robustness.    

scholarly journals A Novel Video Watermarking Algorithm using DTCWT

2021 ◽  
Vol 9 (VI) ◽  
pp. 1629-1634
Author(s):  
Sridevi Tumula
Keyword(s):  
Digital Watermarking ◽  
Copyright Protection ◽  
Video Watermarking ◽  
Multimedia Data ◽  
Digital Data ◽  
Robust Watermarking ◽  
Complex Wavelet Transform ◽  
Digital Multimedia ◽  
New Novel ◽  
Audio Data

In this paper a new novel color video watermarking algorithm has been proposed using Dual Tree Complex Wavelet Transform (DTCWT). Digital watermarking is an emerging technology for copyright protection for digital multimedia data. Now-a-days a lot of digital data are exchanged in the internet, so to protect the digital multimedia data, digital watermarking is used, the data may be an image or video or an audio data. The main objective of this paper is to maintain perceptivity of digital video and design a robust watermarking algorithm and maintaining the tradeoff between robustness and perceptivity.

A Unified Approach Towards Multimedia Watermarking

2010 ◽  
pp. 228-253
Author(s):  
Ali Al-Haj ◽  
Ahmad Mohammad ◽  
Samir Abou El-Seoud ◽  
Tuqa Manasrah ◽  
Lama Rajab ◽  
...  
Keyword(s):  
Digital Media ◽  
Digital Watermarking ◽  
Singular Values ◽  
Discrete Wavelet ◽  
Digital Multimedia ◽  
Copyright Violation ◽  
The Media ◽  
Value Decomposition ◽  
Multimedia Watermarking ◽  
Dual Transform

The tremendous advancement of digital technology has increased the ease with which digital multimedia signals (image, video, audio) are stored, transmitted, and reproduced. Consequently, the content providers and owners are faced with problems of protection against copyright violation and other forms of abuse to their digital property. Digital watermarking has been proposed in the last decade as a solution to prevent illegal and malicious copying and distribution of digital media by embedding an unnoticeable information into the media content. This chapter describes three imperceptible and robust watermarking algorithms for different types of multimedia objects (image, video, audio). The three algorithms are based on cascading two powerful mathematical transforms; the Discrete Wavelet Transform (DWT), and the Singular Value Decomposition (SVD). The two transforms are different, and thus provide complementary levels of robustness against the same attack. In the proposed dual-transform algorithms, the watermark bits are not embedded directly on the wavelet coefficients, but rather on the elements of singular values of the DWT sub-bands of the multimedia object. Effectiveness of the proposed algorithms is demonstrated through extensive experimentation.

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