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Paper Abstract and Keywords
Presentation 2021-11-15 13:30
[Poster Presentation] On Visibility Improvement of Image with Biased Brightness Distribution by Near Hue-preserving Color Enhancement Method Using Reversible Digital Watermarking
Rio Kurokawa, Kazuki Yamato, Madoka Hasegawa (Utsunomiya Univ.) EA2021-39 EMM2021-66
Abstract (in Japanese) (See Japanese page) 
(in English) We have been investigating the near hue-preserving color enhancement method to enhance the contrast and saturation of color images using a histogram-based reversible digital watermarking technique. However, this method cannot improve the visibility of the specific regions in color image when the brightness histogram of it is biased toward low or high brightness. To solve this problem, two improvements are added to our previous method, i.e. two types of shift processing after the preprocessing and the limit on the number of divisions of brightness bins in color enhancement and embedding processes, which are effective for the noise reduction and the visibility improvement of the enhanced image. From the simulation result, it was confirmed that our method can improve the subjective visibility although the objective score is slightly inferior to the previous method.
Keyword (in Japanese) (See Japanese page) 
(in English) Reversible digital watermarking / Contrast enhancement / Saturation enhancement / Noise reduction / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 247, EMM2021-66, pp. 69-73, Nov. 2021.
Paper # EMM2021-66 
Date of Issue 2021-11-08 (EA, EMM) 
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)
Download PDF EA2021-39 EMM2021-66

Conference Information
Committee EMM EA ASJ-H  
Conference Date 2021-11-15 - 2021-11-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) [Beginners Session] Engineering/Electro Acoustics, Content Processing, Digital Watermarking, Psychological and Physiological Acoustics, and Related Topics 
Paper Information
Registration To EMM 
Conference Code 2021-11-EMM-EA-H 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) On Visibility Improvement of Image with Biased Brightness Distribution by Near Hue-preserving Color Enhancement Method Using Reversible Digital Watermarking 
Sub Title (in English)  
Keyword(1) Reversible digital watermarking  
Keyword(2) Contrast enhancement  
Keyword(3) Saturation enhancement  
Keyword(4) Noise reduction  
Keyword(5)  
Keyword(6)  
Keyword(7)  
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1st Author's Name Rio Kurokawa  
1st Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
2nd Author's Name Kazuki Yamato  
2nd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
3rd Author's Name Madoka Hasegawa  
3rd Author's Affiliation Utsunomiya University (Utsunomiya Univ.)
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Speaker Author-1 
Date Time 2021-11-15 13:30:00 
Presentation Time 120 minutes 
Registration for EMM 
Paper # EA2021-39, EMM2021-66 
Volume (vol) vol.121 
Number (no) no.246(EA), no.247(EMM) 
Page pp.69-73 
#Pages 5 
Date of Issue 2021-11-08 (EA, EMM) 

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