Results 251 to 260 of about 877 (289)

Evaluating Ouda's Tamper-Localization Watermarking Scheme

Multimedia and Expo, 2007 IEEE International Conference on, 2007
This paper evaluates Ouda and El-Sakka scheme (OE for short) which is a tamper-localization watermarking. OE is a public block-wise scheme which enables everyone to identify the tampered regions. However, we point out OE scheme may identify a forge blocked to be intact, and accuse an intact block to be corrupted.
Yongdong Wu, Bo Qiu, Feng Bao 0001
openaire   +1 more source

Detection and localization of image tamper with scalable granularity

Proceedings of the 3rd International Conference on Cryptography, Security and Privacy, 2019
Image authentication techniques have recently gained great attention due to its importance for a large number of applications. To protect the authenticity of images, some approaches have been proposed in the past years. These approaches include cryptography, semi-fragile watermarking and digital signatures.
Yi Xie 0005, Wenjia Ding, Yulin Wang
openaire   +1 more source

Locality sensitive hashing for tampering detection in automotive systems

Proceedings of the 15th International Conference on Availability, Reliability and Security, 2020
In modern auto vehicles we find dozens of Electronic Control Units (ECUs) running several hundred MBs of code, alongside sophisticated dashboards with integrated wireless communications. While this technological advancement has brought upon a wide range of advantages and integrated features, it also exposed the modern vehicle to significant cyber ...
Roland Bolboaca, Teri Lenard, Béla Genge, Piroska Haller   +3 more
openaire   +1 more source

Splicing Localization in Tampered Blurred Images

2019 4th International Conference on Pattern Recognition and Image Analysis (IPRIA), 2019
Digital images are the fastest means of transferring information in the present era, but with the ubiquitousness of advanced photo-editing tools, image forgery has become easier and more frequent. A common class of image forgery techniques is called “splicing”, in which, the forger crops a region of the first image and places it in the second image ...
Seyede-Elahe Abdosalehi, Ahmad Mahmoodi-Aznaveh   +1 more
openaire   +1 more source

Localization of sparse image tampering via random projections

2008 15th IEEE International Conference on Image Processing, 2008
Hashes can be used to provide authentication of multimedia contents. In the case of images, a hash can be used to detect whether the data has been modified in an illegitimate way. When the authentication check fails, it might be useful to localize the tampering in the spatial domain.
TAGLIASACCHI, MARCO, VALENZISE, GIUSEPPE, TUBARO, STEFANO   +2 more
openaire   +2 more sources

Two-Layer Binary Image Authentication With Tampering Localization

2006 IEEE International Conference on Acoustics Speed and Signal Processing Proceedings, 2006
In this paper, a novel two-layer blind binary image authentication scheme is proposed, in which the first layer is targeted at the overall authentication and the second layer is targeted at identifying the tampering locations. The "flippability" of a pixel is determined by the three "connectivity-preserving" transition criterions described in H.
Huijuan Yang, Alex C. Kot
openaire   +1 more source

A comprehensive survey of detecting tampered images and localization of the tampered region.

Multim. Tools Appl., 2021
T. Anbu, M. Milton Joe, G. Murugeswari
openaire   +2 more sources

A feature-based approach for image tampering detection and localization

2014 IEEE International Workshop on Information Forensics and Security (WIFS), 2014
We propose a new camera-based technique for tampering localization. A large number of blocks are extracted off-line from training images and characterized through features based on a dense local descriptor. A multidimensional Gaussian model is then fit to the training features. In the testing phase, the image is analyzed in sliding-window modality: for
VERDOLIVA, LUISA, COZZOLINO, DAVIDE, POGGI, GIOVANNI   +2 more
openaire   +2 more sources

A Comprehensive Survey of Detection of Tampered Video and Localization of Tampered Frame.

Wirel. Pers. Commun., 2022
T. Anbu, M. Milton Joe, G. Murugeswari
openaire   +2 more sources

A Secure Hierarchical Fragile Watermarking Method with Tamper Localization

First International Multi-Symposiums on Computer and Computational Sciences (IMSCCS'06), 2006
Several image authentication schemes are either vulnerable to attacks or sacrifice localization accuracy to improve security. In this paper, we proposed a scheme that not only thwarts all kinds of attacks such as vector quantization (VQ) and oracle attack in order to satisfy the security but also ensures superior accuracy of tamper localization.
Xianhai Zhang, Yongtian Yang, Yan Zhu 0010   +2 more
openaire   +1 more source