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Paper Abstract and Keywords
Presentation 2009-10-29 13:40
A study on illumination condition for optical-digital water marking
Mizuho Komori, Kazutake Uehira, Masahiro Suzuki (Kanagawa Inst. of Tech.) HIP2009-75
Abstract (in Japanese) (See Japanese page) 
(in English) This paper describes the degree of invisibility in optical-digital watermarking that we propose to prevent the illegal use of captured images of objects such as paintings in museums. As it uses illumination that contains watermarking to illuminate an object, a photograph of the object also contains watermarking. The key to this technique is to make watermarking invisible when it is projected onto objects. We conducted a subjective test where optical images of watermarking produced by discrete-cosine and Hadamard transforms were projected onto the printed image. The results from the test demonstrated that we could make the watermarking pattern invisible in a practical situation where we applied this technique although this depended on the contrast in the pattern. We also confirmed our technique was feasible.
Keyword (in Japanese) (See Japanese page) 
(in English) Digital Water Marking / Copyright Protection / Discrete Cosine Transform / Hadamard Transform / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 261, HIP2009-75, pp. 11-14, Oct. 2009.
Paper # HIP2009-75 
Date of Issue 2009-10-22 (HIP) 
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 HIP2009-75

Conference Information
Committee HIP  
Conference Date 2009-10-29 - 2009-10-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyushu Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To HIP 
Conference Code 2009-10-HIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on illumination condition for optical-digital water marking 
Sub Title (in English)  
Keyword(1) Digital Water Marking  
Keyword(2) Copyright Protection  
Keyword(3) Discrete Cosine Transform  
Keyword(4) Hadamard Transform  
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1st Author's Name Mizuho Komori  
1st Author's Affiliation Kanagawa Institute of Technology (Kanagawa Inst. of Tech.)
2nd Author's Name Kazutake Uehira  
2nd Author's Affiliation Kanagawa Institute of Technology (Kanagawa Inst. of Tech.)
3rd Author's Name Masahiro Suzuki  
3rd Author's Affiliation Kanagawa Institute of Technology (Kanagawa Inst. of Tech.)
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Speaker Author-1 
Date Time 2009-10-29 13:40:00 
Presentation Time 20 minutes 
Registration for HIP 
Paper # HIP2009-75 
Volume (vol) vol.109 
Number (no) no.261 
Page pp.11-14 
#Pages 4 
Date of Issue 2009-10-22 (HIP) 

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