Title
Localization and security enhancement of block-based image authentication
Abstract
Most block-based image authentication techniques that are presented in the literature sacrifice localization accuracy in order to resist vector quantization (VQ) counterfeiting attacks. In this paper, we show that strong cryptography schemes, which produce a long signature, can be used to sign image blocks without regard to the size of these blocks. In addition, a new approach to generate overlapped watermark segments for image blocks is presented. These watermarks are generated using one-way function based on an NP-complete problem. Moreover, a block-based image authentication technique is proposed. This technique provides strong protection against the VQ attack, as well as a great enhancement in localization accuracy and system security.
Year
DOI
Venue
2005
10.1109/ICIP.2005.1529840
Image Processing, 2005. ICIP 2005. IEEE International Conference
Keywords
Field
DocType
cryptography,image coding,image enhancement,image segmentation,vector quantisation,watermarking,NP-complete problem,block-based image authentication techniques,cryptography schemes,image localization,one-way function,overlapped watermark segments,security enhancement,vector quantization counterfeiting attacks,component,cryptography,digital watermarking,image authentication,image signature,steganography
Computer vision,Digital watermarking,Authentication,Security enhancement,Pattern recognition,Cryptography,Computer science,Watermark,Image segmentation,Vector quantization,Artificial intelligence,Strong cryptography
Conference
Volume
ISSN
ISBN
1
1522-4880
0-7803-9134-9
Citations 
PageRank 
References 
7
0.72
5
Authors
2
Name
Order
Citations
PageRank
Abdelkader H. Ouda1939.26
Mahmoud R. El-Sakka2102.25