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Paper Abstract and Keywords
Presentation 2007-12-19 16:35
A Lossless Image Authentication Scheme for Tamper-Proofing
Tomoya Tanaka, Koki Abe (UEC) ISEC2007-126
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes an image authentication scheme that does not have any influence
on images at all.
Conventional semi-fragile watermarking using discrete wavelet transform embeds watermarks to
DWT image coefficients.
Instead, the proposed scheme generates the relation between DWT coefficients and author information and stores
the relation as the key.
In authentication process, instead of extracting watermarks from the DWT coefficient of image,
the scheme detects the author information from the stored key,
and restores the information as well as discovers tampers.
The experiment revealed that the author information is more robust and more correctly restored
against non-malicious distortions such as JPEG compression, soft focus, shrinking and enlargement
than the conventional semi-fragile watermarking scheme.
It was also found that tampers can be correctly discovered against such distortions.
The increase of memory cost for storing the key was about $10\%$ compared with the conventional method.
Keyword (in Japanese) (See Japanese page) 
(in English) DWT / authentication / tamper-proofing / lossless / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 397, ISEC2007-126, pp. 101-106, Dec. 2007.
Paper # ISEC2007-126 
Date of Issue 2007-12-12 (ISEC) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF ISEC2007-126

Conference Information
Committee ISEC  
Conference Date 2007-12-19 - 2007-12-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To ISEC 
Conference Code 2007-12-ISEC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Lossless Image Authentication Scheme for Tamper-Proofing 
Sub Title (in English)  
Keyword(1) DWT  
Keyword(2) authentication  
Keyword(3) tamper-proofing  
Keyword(4) lossless  
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1st Author's Name Tomoya Tanaka  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Koki Abe  
2nd Author's Affiliation The University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2007-12-19 16:35:00 
Presentation Time 25 minutes 
Registration for ISEC 
Paper # ISEC2007-126 
Volume (vol) vol.107 
Number (no) no.397 
Page pp.101-106 
#Pages
Date of Issue 2007-12-12 (ISEC) 


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