Paper Abstract and Keywords |
Presentation |
2021-06-24 09:50
A Data Hiding Method Using Correlation Coefficients among Index Colors for Palette-Based Images Eichi Arai, Shoko Imaizumi (Chiba Univ.) SIS2021-2 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this paper, we propose an extended data hiding method for palette-based images, which improves the marked image quality.Before the data hiding process, the index colors are typically reordered in order to minimize the differences among neighboring colors.First, the previous method reorders the index colors using the nearest neighbor method.Therefore, as the number of the index colors, which have not been reordered, decreases, the differences among the remaining index colors increases.In contrast, the proposed method first calculates correlation coefficients among index color for each two of RGB color components.A single or multiple sets, which consist of the index colors, are formed based on the coefficients, and the origin is derived for each set.Then, the index colors in each set are numbered in ascending order of distance from the origin, and all the sets are finally combined.Consequently, the marked image quality of our method is higher than that of the previous method.Experimental results show the effectiveness of the proposed method in terms of image quality evaluation using PSNR and SSIM. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
palette-based image / data hiding / index color / correlation coefficient / image quality improvement / / / |
Reference Info. |
IEICE Tech. Rep., vol. 121, no. 73, SIS2021-2, pp. 7-12, June 2021. |
Paper # |
SIS2021-2 |
Date of Issue |
2021-06-17 (SIS) |
ISSN |
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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SIS2021-2 |
Conference Information |
Committee |
SIS IPSJ-AVM |
Conference Date |
2021-06-24 - 2021-06-24 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Online |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Intelligent Multimedia Systems, Applied Embedded Systems, Three-Dimensional Image Technology (3DIT), etc. |
Paper Information |
Registration To |
SIS |
Conference Code |
2021-06-SIS-AVM |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Data Hiding Method Using Correlation Coefficients among Index Colors for Palette-Based Images |
Sub Title (in English) |
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palette-based image |
Keyword(2) |
data hiding |
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index color |
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correlation coefficient |
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image quality improvement |
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1st Author's Name |
Eichi Arai |
1st Author's Affiliation |
Chiba University (Chiba Univ.) |
2nd Author's Name |
Shoko Imaizumi |
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Chiba University (Chiba Univ.) |
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Speaker |
Author-1 |
Date Time |
2021-06-24 09:50:00 |
Presentation Time |
20 minutes |
Registration for |
SIS |
Paper # |
SIS2021-2 |
Volume (vol) |
vol.121 |
Number (no) |
no.73 |
Page |
pp.7-12 |
#Pages |
6 |
Date of Issue |
2021-06-17 (SIS) |
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