Results 21 to 30 of about 42,975 (207)

Improved Watermarking Scheme Using Decimal Sequences [PDF]

open access: yes, 2005
This paper presents watermarking algorithms using d-sequences so that the peak signal to noise ratio (PSNR) is maximized and the distortion introduced in the image due to the embedding is minimized. By exploiting the cross correlation property of decimal
Shaik, Ashfaq N
core   +3 more sources

A review on medicinal properties of saffron toward major diseases [PDF]

open access: yes, 2016
The stigma of Crocus sativus, known as saffron, is one of the most expensive spices in the world. The bioactive components in saffron, picrocrocin, crocin, and safranal, have demonstrated a wide range of uses and capabilities in the medical field.
Abd Razak, Saiful Izwan   +4 more
core   +2 more sources

New Color Image Zero-Watermarking Using Orthogonal Multi-Channel Fractional-Order Legendre-Fourier Moments

open access: yesIEEE Access, 2021
Zero-watermarking methods provide promising solutions and impressive performance for copyright protection of images without changing the original images. In this paper, a novel zero-watermarking method for color images is envisioned.
Khalid M. Hosny   +2 more
doaj   +1 more source

Spread spectrum-based video watermarking algorithms for copyright protection [PDF]

open access: yes, 2002
Merged with duplicate record 10026.1/2263 on 14.03.2017 by CS (TIS)Digital technologies know an unprecedented expansion in the last years. The consumer can now benefit from hardware and software which was considered state-of-the-art several years ago ...
Serdean, Cristian Vasile
core   +2 more sources

Implementation of Adaptive Unsharp Masking as a pre-filtering method for watermark detection and extraction [PDF]

open access: yes, 2016
Digital watermarking has been one of the focal points of research interests in order to provide multimedia security in the last decade. Watermark data, belonging to the user, are embedded on an original work such as text, audio, image, and video and thus,
Ilk, Hakki Gokhan, Jane, Onur
core   +2 more sources

A robust zero-watermarking scheme based on non-negative matrix factorization for audio protection.

open access: yesPLoS ONE, 2022
The copyright problem of digital products is becoming more and more prominent. In this case, digital watermarking technology has attracted the attention of many experts and scholars in the field of information security.
Xing Guo, Daiyu Huang, Longting Xu
doaj   +1 more source

Tatouage audio par EMD [PDF]

open access: yes, 2013
In this paper a new adaptive audio watermarking algorithm based on Empirical Mode Decomposition (EMD) is introduced. The audio signal is divided into frames and each one is decomposed adaptively, by EMD, into intrinsic oscillatory components called ...
BOUDRAA, Abdel-Ouahab, KHALDI, Kais
core   +5 more sources

End-to-end security for video distribution [PDF]

open access: yes, 2013
Content distribution applications such as digital broadcasting, video-on-demand services, video conferencing, surveillance, and telesurgery are confronted with difficultiesbesides the inevitable compression and quality challengeswith respect to ...
Boho, Andras   +7 more
core   +1 more source

An effective digital audio watermarking using a deep convolutional neural network with a search location optimization algorithm for improvement in Robustness and Imperceptibility

open access: yesHigh-Confidence Computing, 2023
Watermarking is the advanced technology utilized to secure digital data by integrating ownership or copyright protection. Most of the traditional extracting processes in audio watermarking have some restrictions due to low reliability to various attacks.
Abhijit J. Patil, Ramesh Shelke
doaj   +1 more source

Infrared thermograms applied to near-field testing [PDF]

open access: yes, 1999
Electromagnetic fields close to radiant structures can be measured quickly using an infrared camera. Examples of induced fields by wire antennas over a detection screen at distances shorter than one wavelength are presented.
Aguasca Solé, Alberto   +2 more
core   +2 more sources

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