Results 21 to 30 of about 877 (289)
Knowledge-Based Fusion for Image Tampering Localization [PDF]
, 2020 In this paper we introduce a fusion framework for image tampering localization, that moves towards overcoming the limitation of available tools by allowing a synergistic analysis and multiperspective refinement of the final forensic report. The framework is designed to combine multiple state-of-the-art techniques by exploiting their complementarities ...
Iakovidou, Chryssanthi +2 more
openaire +1 more source
Transferable Adversarial Attack on Image Tampering Localization
CoRR, 2023 It is significant to evaluate the security of existing digital image tampering localization algorithms in real-world applications. In this paper, we propose an adversarial attack scheme to reveal the reliability of such tampering localizers, which would be fooled and fail to predict altered regions correctly.
Yuqi Wang +3 more
openaire +2 more sources
ICTACT Journal on Image and Video Processing, 2021 Surveillance systems are becoming pervasive throughout our daily lives, and surveillance recordings are being used as the essential evidence in criminal investigations. The authenticity of surveillance videos is tough to confirm.
Jatin Patel, Ravi Sheth
doaj +1 more source
Operation-wise Attention Network for Tampering Localization Fusion [PDF]
2021 International Conference on Content-Based Multimedia Indexing (CBMI), 2021 6 pages, 3 figures ...
Polychronis Charitidis +3 more
openaire +2 more sources
An investigation of an MPEG-4 embedded spatial digital watermark developed for tamper detection and characterization [PDF]
, 2003 The widespread adoption of digital video techniques has generated a requirement for authenticity verification in applications such as criminal evidence, insurance claims and commercial databases.
Knowles, HD +3 more
core +1 more source
Fingerprint watermarking with tamper localization and exact recovery using multi-level authentication [PDF]
, 2018 This paper presents the tamper localization and exact recovery using multi-level authentication in fingerprint watermarking. The proposed scheme will be detecting the tampered sector of fingerprint images when the watermark is embedded in the original ...
Wei, Keat Lee, Liew, Siau-Chuin
core +2 more sources
Attack characterisation of compressed images [PDF]
, 2003 We propose the use of robust watermarks to enable the characterisation of attacks even after lossy compression, such as JPEG and JPEG2000. A previously constructed Bayesian framework is used to allow characterisation of attacks from a predetermined ...
Knowles, HD +3 more
core +1 more source
Local Content Based Image Authentication for Tamper Localization [PDF]
International Journal of Image, Graphics and Signal Processing, 2012 Digital images make up a large component in the multimedia information. Hence Image authentication has attained a great importance and lead to the development of several image authentication algorithms. This paper proposes a block based watermarking scheme for image authentication based on the edge information extracted from each block.
L. Sumalatha +2 more
openaire +1 more source
IEEE Access, 2018 Digital transmission of sensitive images and documents over unsecure networks, such as the Internet, has become a general practice. As a result, the digital content has become vulnerable to intentional and unintentional modifications during transmission.
Lamri Laouamer, Omar Tayan
doaj +1 more source
Nested Block Based Double Self-Embedding Fragile Image Watermarking With Super-Resolution Recovery
IEEE Access, 2023 Self-recovery capability is challenging in developing fragile watermarking alongside authentication and tamper localization. In certain situations, authentication and tamper localization alone may not be sufficient.
Nova Rijati +1 more
doaj +1 more source