Results 11 to 20 of about 144 (116)

Secure medical image watermarking based on reversible data hiding with Arnold's cat map

open access: yesIJAIN (International Journal of Advances in Intelligent Informatics), 2023
The process of restoring medical images to their original form after the extraction process in application watermarking is crucial for ensuring their authenticity. Inaccurate diagnoses can occur due to distortions in medical images from conventional data
Aulia Arham, Novia Lestari
doaj   +1 more source

A feature adaptive image watermarking framework based on Phase Congruency and Symmetric Key Cryptography

open access: yesJournal of King Saud University: Computer and Information Sciences, 2022
In this paper, a Phase Congruency based digital color image watermarking algorithm is proposed which provides a higher degree of robustness against attacks and excellent imperceptibility.
Subhadeep Koley
doaj   +1 more source

AntEater: When Arnold’s Cat Meets Langton’s Ant to Encrypt Images

open access: yesIEEE Access, 2023
With the proliferation of digital images over open networks, secure and efficient encryption schemes are imperative for safeguarding image privacy. This paper proposes a novel 5-stage image encryption algorithm adhering to Shannon’s confusion and ...
Wassim Alexan   +6 more
doaj   +1 more source

A Maximum Entropy-Based Chaotic Time-Variant Fragile Watermarking Scheme for Image Tampering Detection

open access: yesEntropy, 2013
The fragile watermarking technique is used to protect intellectual property rights while also providing security and rigorous protection. In order to protect the copyright of the creators, it can be implanted in some representative text or totem. Because
Guo-Jheng Yang   +2 more
doaj   +1 more source

A New Video Steganography Scheme Based on Shi-Tomasi Corner Detector

open access: yesIEEE Access, 2020
Recent developments in the speed of the Internet and information technology have made the rapid exchange of multimedia information possible. However, these developments in technology lead to violations of information security and private information ...
Ramadhan J. Mstafa   +3 more
doaj   +1 more source

Embedded implementation of multispectral satellite image encryption using a chaos-based block cipher

open access: yesJournal of King Saud University: Computer and Information Sciences, 2020
Image transmission from earth observation satellites to ground station is exposed to threats that can affect the confidentiality of data. One of the crucial tasks of on-board computer systems is to ensure the confidentiality of data transmitted from the ...
El-Habib Bensikaddour   +2 more
doaj   +1 more source

Image encryption based on Independent Component Analysis and Arnold’s Cat Map

open access: yesEgyptian Informatics Journal, 2016
Security of the multimedia data including image and video is one of the basic requirements for the telecommunications and computer networks. In this paper, a new efficient image encryption technique is presented.
Nidaa AbdulMohsin Abbas
doaj   +1 more source

A Novel Chaotic Map and an Improved Chaos-Based Image Encryption Scheme

open access: yesThe Scientific World Journal, 2014
In this paper, we present a novel approach to create the new chaotic map and propose an improved image encryption scheme based on it. Compared with traditional classic one-dimensional chaotic maps like Logistic Map and Tent Map, this newly created ...
Xianhan Zhang, Yang Cao
doaj   +1 more source

English teachers' journeys since the 2020 Iteration of Black Lives Matter

open access: yesBritish Educational Research Journal, EarlyView.
Abstract The 2020 resurgence of Black Lives Matter (BLM) mobilised students in England to demand greater representation of racially minoritised voices in English curriculums—a call highlighted by stark inequity: just 1.5% of GCSE texts studied are by racially minoritised authors, despite racially minoritised students comprising 38.0% of the student ...
Adrian Fernandes
wiley   +1 more source

Feasibility Assessment of a Single‐pH Connected Polishing Train for Monoclonal Antibody Purification Using Mildly Acidic Protein A Elution and an Acidic‐Window Anion Exchange Membrane

open access: yesBiotechnology and Bioengineering, EarlyView.
ABSTRACT Monoclonal antibody downstream processing often requires multiple pH adjustments between Protein A capture and polishing steps. These adjustments increase process complexity and make direct unit‐operation connection more difficult. We evaluated a connected post‐capture polishing block operated at approximately pH 5.0 using mild‐pH Protein A ...
Takaki Aiso   +5 more
wiley   +1 more source

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