Results 11 to 20 of about 877 (289)

AUTHENTICATION, TAMPER LOCALIZATION AND RECTIFICATION ALGORITHM WITH PRIVACY PRESERVATION OF IMAGE FOR THE CLOUD USING HMAC [PDF]

open access: yesICTACT Journal on Image and Video Processing, 2017
Digital images like military, medical and quality control images are increasingly stored over cloud server. These images need protection against attempts to manipulate them since manipulations could tamper the decisions based on these images, many ...
Sayyada Fahmeeda Sultana, D C Shubhangi
doaj   +2 more sources

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

open access: yesEngineering 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   +3 more
doaj   +5 more sources

PoWBWM: Proof of work consensus cryptographic blockchain-based adaptive watermarking system for tamper detection applications

open access: yesAlexandria Engineering Journal
Image tamper detection is a challenging area in multimedia research. The advances in photography technology have made it possible to capture real-time high-dynamic-range (HDR) images through an iPhone or an Android device, which highlights the need for ...
P. Aberna, L. Agilandeeswari
doaj   +2 more sources

Image Forgery Detection and Localization via a Reliability Fusion Map

open access: yesSensors, 2020
Moving away from hand-crafted feature extraction, the use of data-driven convolution neural network (CNN)-based algorithms facilitates the realization of end-to-end automated forgery detection in multimedia forensics.
Hongwei Yao   +4 more
doaj   +2 more sources

Tamper localization and lossless recovery watermarking scheme with ROI segmentation and multilevel authentication. [PDF]

open access: yesJ Digit Imaging, 2013
Tamper localization and recovery watermarking scheme can be used to detect manipulation and recover tampered images. In this paper, a tamper localization and lossless recovery scheme that used region of interest (ROI) segmentation and multilevel ...
Liew SC, Liew SW, Zain JM, Zain JM.
europepmc   +2 more sources

UES256—Upper Euphrates Signature: A Secure Fragile Watermark for Blind Authentication and Tamper Detection

open access: yesIEEE Access
Fragile watermarking provides integrity verification and authenticity assurance by embedding tamper-sensitive watermarks to reveal unauthorized modifications.
Ahmed Abduljabbar AlSabhany   +1 more
doaj   +2 more sources

Passive forensic based on spatio-temporal localization of video object removal tampering [PDF]

open access: yesTongxin xuebao, 2020
To address the problem of identification of authenticity and integrity of video content and the location of video tampering area,a deep learning detection algorithm based on video noise flow was proposed.Firstly,based on SRM (spatial rich model) and C3D (
Linqiang CHEN   +5 more
doaj   +4 more sources

High-Resolution Remote Sensing Image Integrity Authentication Method Considering Both Global and Local Features

open access: yesISPRS International Journal of Geo-Information, 2020
Content integrity of high-resolution remote sensing (HRRS) images is the premise of its usability. Existing HRRS image integrity authentication methods are mostly binary decision-making processes, which cannot provide a further interpretable information (
Xingang Zhang   +3 more
doaj   +1 more source

A Novel Integrity Authentication Algorithm Based on Perceptual Speech Hash and Learned Dictionaries

open access: yesIEEE Access, 2020
Perceptual speech hash and robust watermarking have been widely investigated to solve the problems of authenticating speech integrity. The former generates a watermark and the latter embeds the watermark into the speech signal to implement speech ...
Canghong Shi, Xiaojie Li, Hongxia Wang
doaj   +1 more source

Robust Hash for Detecting and Localizing Image Tampering [PDF]

open access: yes2007 IEEE International Conference on Image Processing, 2007
An image hash should be (1) robust to allowable operations and (2) sensitive to illegal manipulations and distinct queries. Some applications also require the hash to be able to localize image tampering. This requires the hash to contain both robust content and alignment information to meet the above criterion.
Sujoy Roy, Qibin Sun
openaire   +1 more source

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