Results 11 to 20 of about 21,589 (305)
Block mapping and dual-matrix-based watermarking for image authentication with self-recovery capability. [PDF]
Numerous image authentication techniques have been devised to address the potential security issue of malicious tampering with image content since digital images can be easily duplicated, modified, transformed and diffused via the Internet transmission ...
Xuejing Li +3 more
doaj +2 more sources
Digital watermarking scheme exploiting non-deterministic dependence for image authentication [PDF]
Watermarking schemes for authentication purposes are characterized by three factors: security, resolution of tamper localization, and embedding distortion.
Yuan, Yinyin, Li, Chang-Tsun
core +1 more source
Digital fragile watermarking scheme for authentication of JPEG images [PDF]
It is a common practice in transform-domain fragile watermarking schemes for authentication purposes to watermark some selected transform coefficients so as to minimise embedding distortion.
C.-T. Li, Li, Chang-Tsun
core +1 more source
Wavelet-based fragile watermarking scheme for image authentication [PDF]
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 reversible and lossless secret image sharing scheme with authentication for color images
With the increasing concern for public privacy protection, Secret Image Sharing (SIS) has garnered significant attention among researchers. The goal of SIS is to split a secret image into multiple shadows, rendering it unrecoverable unless a specific ...
Wendan Li +4 more
doaj +1 more source
A novel optical signature and authentication cryptosystem is proposed by applying triangular association encryption algorithm (TAEA) and 3D Arnold transform in Gyrator domains.
Zhonglin Yang +6 more
doaj +1 more source
Digital watermarking for image authentication with localization
S.1973-1976In this paper we propose a novel watermarking scheme for image authentication. A high localization of tampering detection is achieved by applying a random permutation process where every embedded watermark bit verifies random image positions ...
Steinebach, M., Liu, H.
core +1 more source
Recently, cloud computing (CC) received significant interest among organizations and individuals. Despite the significant benefits of CC, security and privacy are considered as the major issue.
D. Prabhu, S. Vijay Bhanu, S. Suthir
doaj +1 more source
An XML transformed method to improve effectiveness of graphical password authentication
Graphical passwords are already examined as the reliable authentication scheme over the textual passwords. These passwords promise the better robustness and memorability.
Kapil Juneja
doaj +1 more source
A Survey on Image Hashing for Image Authentication
The traditional cryptographic hash functions are sensitive to even one-bit difference of the input message. While multimedia data always undergo compression or other signal processing operations, which lead to the unsuitability of multimedia authentication using cryptographic hash. The image hashing has emerged recently which captures visual essentials
OU, Yang, RHEE, Kyung Hyune
openaire +2 more sources

