Results 41 to 50 of about 1,433 (182)

Robust and Semi-Fragile Watermarking Techniques for Image Content Protection.

, 2020
With the tremendous growth and usage of digital images nowadays, the integrity and authenticity of digital content is becoming increasingly important and of major concern to many government and commercial sectors.
Zhao, Xi., Zhao, Xi
core   +1 more source

Semi-fragile watermarking based content image authentication scheme

Revista Facultad de Ingeniería Universidad de Antioquia, 2010
Este articulo presenta un algoritmo de marca de agua semi-frágil basado en el contenido de los bloques de la imagen para la autenticación de los mismos.
Clara Cruz, Rogelio Reyes, Mariko Nakano, Héctor Pérez   +3 more
doaj  

TDSF: Two-phase tamper detection in semi-fragile watermarking using two-level integer wavelet transform

Engineering Science and Technology, an International Journal
Image watermarking is one of techniques that can be used to protect and recover from the altered images. Tamper detection in semi-fragile still does not achieve high accuracy for tamper localization, especially in malicious attacks.
Agit Amrullah, Ferda Ernawan, Anis Farihan Mat Raffei, Liew Siau Chuin   +3 more
doaj   +1 more source

Content authentication of H.264/AVC video stream based on semi-fragile watermarking

Tongxin xuebao, 2009
For the low bit-rate H.264/AVC video stream,a content authentication scheme was proposed by using semi-fragile watermarking.The energy relationship between two groups of DCT blocks in I frame was utilized to generate content based feature code,which was ...
WANG Xiao-jing, YANG Gao-bo, ZHU Ning-bo
doaj   +2 more sources

Reversible watermarking for medical images using ROI-based tamper localization and recovery

Franklin Open
Medical image watermarking has received increasing attention in recent years for securing patient information and ensuring image integrity. To prevent diagnostic errors, data embedding must be fully reversible, and the watermarking scheme must detect and
Aulia Arham, Teguh Bharata Adji, Syukron Abu Ishaq Alfarozi, Hanung Adi Nugroho   +3 more
doaj   +1 more source

Content-Fragile Commutative Watermarking-Encryption Based on Pixel Entropy [PDF]

, 2015
Content-fragile commutative watermarking-encryption requires that both the content-fragile image signature and the watermarking process are invariant under encryption.
Grecos, Christos, Shujun Li, Christos Grecos, Grecos, C, Roland Schmitz, Xinpeng Zhang, Li, Shujun, Schmitz, Roland, Zhang, Xinpeng, Schmitz, R, Li, S, Zhang, X   +11 more
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Semi-Fragile Watermarking Scheme for High-Resolution Color Images: Tamper Identification, Ownership Authentication, and Self-Recovery

Algorithms
The advancements in communication and information technologies have substantially enabled the extensive distribution and modification of high-resolution color images. Although this accessibility provides many advantages, it also presents risks related to
Manuel Cedillo-Hernandez, Antonio Cedillo-Hernandez, Francisco Javier Garcia-Ugalde, Juan Carlos Sanchez-Garcia   +3 more
doaj   +1 more source

Optimal Semi-Fragile Watermarking Based on Maximum Entropy Random Walk and Swin Transformer for Tamper Localization

IEEE Access
In the multimedia arena, image tampering is an uncontrollable process that necessitates content authentication and tamper detection in a variety of applications.
P. Aberna, L. Agilandeeswari
doaj   +1 more source

C.: Counterfeiting attacks on block-wise dependent fragile watermarking schemes

, 2013
This is the author’s version of a work that was submitted/accepted for pub-lication in the following source: Nyeem, Hussain, Boles, Wageeh, & Boyd, Colin (2013) Counterfeiting at-tacks on block-wise dependent fragile watermarking schemes.
Hussain Nyeem, Nyeem, Hussain, Boyd, Colin, Boles, Wageeh, Colin Boyd, Wageeh Boles   +5 more
core   +1 more source

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

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,
Li, Chang-Tsun
core