Results 161 to 170 of about 250 (209)

An Efficient Image Self-Recovery and Tamper Detection Using Fragile Watermarking

Lecture Notes in Computer Science, 2014
Fragile watermarking is one of the most effective approaches to insure the integrity of digital images. In this paper, an efficient self-recovery and tamper localization scheme using fragile watermarking is proposed. The proposed method generates 12-bit tamper detection data and 20-bit self-recovery data for each 4 \(\times \) 4 block.
Sajjad Dadkhah, Somayeh Sadeghi
exaly   +2 more sources

Medical Image Watermarking with Tamper Detection and Recovery

2006 International Conference of the IEEE Engineering in Medicine and Biology Society, 2006
This paper discussed security of medical images and reviewed some work done regarding them. A fragile watermarking scheme was then proposed that could detect tamper and subsequently recover the image. Our scheme required a secret key and a public chaotic mixing algorithm to embed and recover a tampered image. The scheme was also resilient to VQ attack.
Jasni Mohamad Zain, Abdul R. M. Fauzi
openaire   +2 more sources

An Image Watermarking Scheme with Tamper Detection and Recovery

First International Conference on Innovative Computing, Information and Control - Volume I (ICICIC'06), 2006
In the aspect of tamper detection and recovery [ I ] [2], there are some methods to embed the feature information in host image for recovery. When the host image has been tampered with, the feature information can be used to restore the original image. However, it does not have the ability to verzb the ownership of the copyright.
Shinfeng D. Lin, Yu-Chan Kuo, Yu-Hsun Huang   +2 more
openaire   +2 more sources

A Study on Detection and Recovery of Speech Signal Tampering

2016 IEEE Trustcom/BigDataSE/ISPA, 2016
In this paper, a watermark scheme for detecting and recovering the tampering of speech signal is proposed. We embed an approximate version of the origin information into the less significant bits (LSBs). When the watermarked signal is tampered, we can localize the tampered area and exclude from the area, recovery the original one from the approximate ...
Jian Li, Wenhuan Lu, Chen Zhang 0013, Jianguo Wei, Xiaochun Cao, Jianwu Dang 0001   +5 more
openaire   +2 more sources

Watermark based recovery of tampered documents

Proceedings of the ACM SIGKDD Workshop on Intelligence and Security Informatics, 2012
In this work recovery of text documents is addressed. Text documents are watermarked using pixel flipping based watermarking and self-embedding for not only authentication but eventual recovery in presence of tampering. A scheme is proposed that recovers against all possible editing attacks such as substitution, insertion and deletion of characters ...
Makur, Anamitra, Sridharan, Govindarajan
openaire   +2 more sources

Dual Watermarking for Image Tamper Detection and Self-Recovery

2013 Ninth International Conference on Intelligent Information Hiding and Multimedia Signal Processing, 2013
Digital image processing technology presents new challenges for the security of the image information, which makes image authentication as a problem to be addressed. Digital watermarking plays an important role in multimedia information security. This paper proposed a dual watermarking method to do tamper location and self-recovery, which utilizes self-
Qi Han, Lei Han, Erfu Wang, Jie Yang
openaire   +1 more source

Tamper detection and image recovery for BTC-compressed images

Multimedia Tools and Applications, 2016
To ensure the integrity of images compressed using block truncation coding (BTC), a tamper detection and image recovery scheme is proposed in this paper. In this scheme, the size of the authentication data can be adaptively selected according to the user’s requirement.
Yu-Chen Hu, Kim-Kwang Raymond Choo, Wu-Lin Chen   +2 more
openaire   +1 more source

Tamper Detection and Recovery on RGB Images

2020
Special devices are required to perform tampering on an analogue image. This requires a serious cost and skill. But it is easy to tamper on a digital image. Digital images can be tampered even with easy accessible free digital image editing software. Moreover, this tampering can occur even with a mobile phone.
Hüseyin Bilal Macit, Arif Koyun
openaire   +2 more sources

Multi-level tamper detection and recovery with tamper type identification

2013 IEEE International Conference on Image Processing, 2013
A fragile watermarking scheme with simple and effective tamper detection and recovery capability is proposed in this paper. In this new scheme, not only one parity-check watermark but also two copies of feature-bit watermark are embedded. For tamper detection, a new multi-level tamper detection strategy including intra-block detection, inter-block ...
openaire   +1 more source

Method for detection of image tampering and partial recovery

Ninth International Conference on Computer Science and Information Technologies Revised Selected Papers, 2013
In this paper, the problems of detection of unauthorized changes to the content of a digital image, determination of distorted parts and partial recovering of the content from the damaged parts, are considered. most types of image tampering are based on the well known operations of Copy-Paste, Copy-Move or their combinations. In many investigations the
David Asatryan, Naira Asatryan, Natalya Lanina, Alexander Petrosyan   +3 more
openaire   +1 more source