Paper Abstract and Keywords |
Presentation |
2013-09-13 10:55
A Robust Watermarking Method with Systematic Block Diffusion and DCT Kazuo Ohzeki, Kazutaka Bannai, YuanYu Wei, Yutaka Hirakawa (Shibaura Inst. of Tech.), Kiyotsugu Sato (College of Indutrial Tech.) SIS2013-24 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The digital watermark has been taken as an element of security. Authors has proposed a systematic block diffusion digital-watermarking system, which at first, embeds watermark in a reduced block, then embeds the difference of an original image and an enlarged image in which the watermark is embedded in the reduced block with diffusing process. Since a reduced image is not only expanded but it is systematically spread in the expanded block, robustness increases. Embedding is made by linear transformation DCT and quantization. Beyond a trial in a small block size in a previous experiment with an asymmetrical chirp transform, experiments with a large size are conducted in this paper. Under JPEG compression, it is robust even at 1/70 of strong compression. Moreover, it has robustness for cropping attacks. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Shrink / Diffusion / DCT / Systematic block diffusion / cropping / / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 202, SIS2013-24, pp. 65-70, Sept. 2013. |
Paper # |
SIS2013-24 |
Date of Issue |
2013-09-05 (SIS) |
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) |
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SIS2013-24 |
Conference Information |
Committee |
SIS IPSJ-AVM |
Conference Date |
2013-09-12 - 2013-09-13 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Waseda Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
SIS |
Conference Code |
2013-09-SIS-AVM |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Robust Watermarking Method with Systematic Block Diffusion and DCT |
Sub Title (in English) |
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Keyword(1) |
Shrink |
Keyword(2) |
Diffusion |
Keyword(3) |
DCT |
Keyword(4) |
Systematic block diffusion |
Keyword(5) |
cropping |
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1st Author's Name |
Kazuo Ohzeki |
1st Author's Affiliation |
Shibaura Institute of Technology (Shibaura Inst. of Tech.) |
2nd Author's Name |
Kazutaka Bannai |
2nd Author's Affiliation |
Shibaura Institute of Technology (Shibaura Inst. of Tech.) |
3rd Author's Name |
YuanYu Wei |
3rd Author's Affiliation |
Shibaura Institute of Technology (Shibaura Inst. of Tech.) |
4th Author's Name |
Yutaka Hirakawa |
4th Author's Affiliation |
Shibaura Institute of Technology (Shibaura Inst. of Tech.) |
5th Author's Name |
Kiyotsugu Sato |
5th Author's Affiliation |
College of Indutrial Technology (College of Indutrial Tech.) |
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Speaker |
Author-1 |
Date Time |
2013-09-13 10:55:00 |
Presentation Time |
20 minutes |
Registration for |
SIS |
Paper # |
SIS2013-24 |
Volume (vol) |
vol.113 |
Number (no) |
no.202 |
Page |
pp.65-70 |
#Pages |
6 |
Date of Issue |
2013-09-05 (SIS) |
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