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| Presentation | 2016-03-02 15:40 [Poster Presentation] Embedding method into DCT coefficients by using Wet Paper Code Yuri Higashi, Masaki Kawamura (Yamaguchi Univ.)  EMM2015-86 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We propose an embedding method into DCT coefficients by using wet paper code. By using the Wet Paper Code, watermark can be decoded without knowing their embedded positions. Therefore, it is hard for attackers to identify the positions. To use the Wet Paper Code, the simultaneous equation such that number of unknown variables is more than that of equations must be solved. Fridrich introduced a selection rule to reduce the number of unknown variables because of solving the equation. In order to solve the equation, we introduce sparse estimation by which the watermark can be embedded without the selection rule to Wet Paper Code. Unfortunately spike noise appears when sparse solution is used for embedding. We introduce a technique that a component of the watermark is embedded into difference between two DCT coefficients for reducing the noise. Since the watermark is embedded into the DCT coefficients against JPEG compression and marker or synchronization code is also embedded against cropping, the proposed method has robustness for JPEG compression and cropping. As a result, our method can reduce the spike noise and decode message with a few errors from stego-images degraded by these attacks. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | digital watermarking / Wet Paper Code / sparse estimation / Cropping / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 479, EMM2015-86, pp. 57-62, March 2016. | |
| Paper # | EMM2015-86 | |
| Date of Issue | 2016-02-24 (EMM) | |
| 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 | EMM2015-86 |
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| Conference Information | |
| Committee | EMM |
| Conference Date | 2016-03-02 - 2016-03-03 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Yakushima Environ. and Cultural Vill. Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Image and Sound Quality, Metrics for Perception and Recognition, Human Auditory and Visual System, etc. |
| Paper Information | |
| Registration To | EMM |
| Conference Code | 2016-03-EMM |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Embedding method into DCT coefficients by using Wet Paper Code |
| Sub Title (in English) | |
| Keyword(1) | digital watermarking |
| Keyword(2) | Wet Paper Code |
| Keyword(3) | sparse estimation |
| Keyword(4) | Cropping |
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| 1st Author's Name | Yuri Higashi |
| 1st Author's Affiliation | Yamaguchi University (Yamaguchi Univ.) |
| 2nd Author's Name | Masaki Kawamura |
| 2nd Author's Affiliation | Yamaguchi University (Yamaguchi Univ.) |
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| Speaker | Author-1 |
| Date Time | 2016-03-02 15:40:00 |
| Presentation Time | 60 minutes |
| Registration for | EMM |
| Paper # | EMM2015-86 |
| Volume (vol) | vol.115 |
| Number (no) | no.479 |
| Page | pp.57-62 |
| #Pages | 6 |
| Date of Issue | 2016-02-24 (EMM) |
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