Results 21 to 30 of about 9,260 (216)

Watermarking for multimedia security using complex wavelets [PDF]

open access: yes, 2010
This paper investigates the application of complex wavelet transforms to the field of digital data hiding. Complex wavelets offer improved directional selectivity and shift invariance over their discretely sampled counterparts allowing for better ...
Bouridane, A.   +10 more
core   +1 more source

Reversible watermarking scheme with image-independent embedding capacity [PDF]

open access: yes, 2005
Permanent distortion is one of the main drawbacks of all the irreversible watermarking schemes. Attempts to recover the original signal after the signal passing the authentication process are being made starting just a few years ago. Some common problems,
C.-T. Li, Li, Chang-Tsun
core   +1 more source

Analysis of watermarking techniques in multimedia communications [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2021
Multimedia information is critical of examining, information perceived and which are illustrated by the human cerebrum. In our brain, 33% of the cortical area concentrates only on visual information processing. Digital watermarking technology is
Sridhar Balakrishnan, Syambabu Vadlamudi
doaj   +1 more source

Wavelet-based fragile watermarking scheme for image authentication [PDF]

open access: yes, 2007
We propose a fragile watermarking scheme in the wavelet transform domain that is sensitive to all kinds of manipulations and has the ability to localize the tampered regions.
Si, Huayin, Li, Chang-Tsun
core   +1 more source

A contrast-sensitive reversible visible image watermarking technique [PDF]

open access: yes, 2009
A reversible (also called lossless, distortion-free, or invertible) visible watermarking scheme is proposed to satisfy the applications, in which the visible watermark is expected to combat copyright piracy but can be removed to losslessly recover the ...
Xiao, R. (Rong)   +4 more
core   +1 more source

Digital Watermarking

open access: yesInternational Journal of Advanced Research in Computer Science and Software Engineering, 2017
Nowadays, Multimedia contents such as images, videos, e-books and texts are easy to available for download through internet in worldwide. Duplication of multimedia contents is to create using different software. This type of operation some time created problem of copyright and ownership authentication.
Rohit M. Thanki, Ashish M. Kothari
  +4 more sources

FEATURE-BASED DIGITAL WATERMARKING FOR REMOTE SENSING IMAGES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
With the rapid development of information and communication technology, people can acquire and distribute many kinds of digital data more conveniently than before.
P.-H. Hsu, C.-C. Chen
doaj   +1 more source

Countermeasure for collusion attacks against digital watermarking

open access: yes, 2022
Art. 60720DCustomer identification watermarking today is one of the most promising application domains of digital watermarking. It enables to identify individual copies of otherwise indistinguishable digital copies. If done without any precautions, those
Steinebach, M., Zmudzinski, S.
core   +1 more source

Time-Frequency Analysis and Its Application in Digital Watermarking

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
A review of time-frequency analysis and some aspects of its applications in digital watermarking are presented. The main advantages and drawbacks of various time-frequency distributions are first discussed.
Srdjan Stanković
doaj   +2 more sources

Practical Challenges for Digital Watermarking Applications

open access: yesEURASIP Journal on Advances in Signal Processing, 2002
The field of digital watermarking has recently seen numerous articles covering novel techniques, theoretical studies, attacks, and analysis. In this paper, we focus on an emerging application to highlight practical challenges for digital watermarking ...
Sharma Ravi K, Decker Steve
doaj   +1 more source

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