Paper Abstract and Keywords |
Presentation |
2011-11-11 09:50
High-quality Resolution Reduction Method Preserving Periodical Structure for Halftone Image Kaoru Ishito, Kazuki Katagishi (Univ. of Tsukuba) IE2011-79 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper proposes a new resolution reduction method for halftone images. Recently, smartphones or tablet PCs have become widespread. When viewing comics on mobile devices as e-books, image resolution conversion is required, because there are various resolution devices. If a comic image is reduced with conventional resolution conversion methods using interpolating functions such as bicubic interpolation, moire that leads to deterioration in image quality is generated, because a comic image has halftones having periodic structures. In this paper, we propose a resolution reduction method for halftone images which preserve a periodic structure of original images. Experiments show that a moire is not generated with our proposed method, and the method is superior in image quality and computational time to the conventional bicubic interpolation. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
resolution conversion / halftone / moire / interpolating function / bicubic / / / |
Reference Info. |
IEICE Tech. Rep., vol. 111, no. 284, IE2011-79, pp. 13-18, Nov. 2011. |
Paper # |
IE2011-79 |
Date of Issue |
2011-11-04 (IE) |
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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IE2011-79 |
Conference Information |
Committee |
ITE-ME ITE-AIT IE |
Conference Date |
2011-11-11 - 2011-11-11 |
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(See Japanese page) |
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Paper Information |
Registration To |
IE |
Conference Code |
2011-11-ME-AIT-IE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
High-quality Resolution Reduction Method Preserving Periodical Structure for Halftone Image |
Sub Title (in English) |
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Keyword(1) |
resolution conversion |
Keyword(2) |
halftone |
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moire |
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interpolating function |
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bicubic |
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1st Author's Name |
Kaoru Ishito |
1st Author's Affiliation |
University of Tsukuba (Univ. of Tsukuba) |
2nd Author's Name |
Kazuki Katagishi |
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University of Tsukuba (Univ. of Tsukuba) |
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Speaker |
Author-1 |
Date Time |
2011-11-11 09:50:00 |
Presentation Time |
25 minutes |
Registration for |
IE |
Paper # |
IE2011-79 |
Volume (vol) |
vol.111 |
Number (no) |
no.284 |
Page |
pp.13-18 |
#Pages |
6 |
Date of Issue |
2011-11-04 (IE) |
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