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Paper Abstract and Keywords
Presentation 2017-12-15 10:30
Color Image Enhancement in HSI Color Space with Saturation Correction
Minako Kamiyama, Akira Taguchi (Tokyo City Univ.) SIS2017-49
Abstract (in Japanese) (See Japanese page) 
(in English) In color image processing, hue preserving is required. Therefore, perceptual color models such as HSI and HSV have been used. Hue-Saturation-Intensity (HSI) is a public color model, and many color applications have been made based on this model. However, the transformation from the conventional HSI (C-HSI) color space to the RGB color space after processing intensity/saturation in the C-HSI color space usually generates the gamut problem, because the shape of C-HSI color space is a triangular pyramid which is included RGB color space. When the output of intensity/saturation processing result is located in the outside of the common region of RGB color space and C-HSI color space, it is necessary to change the saturation value. We proposed the effective way of hue preserving saturation correction algorithm. According to the proposed saturation correction algorithm, the corrected saturation value is same as the processing result in the ideal HSI color space whose gamut same as the RGB gamut.
Keyword (in Japanese) (See Japanese page) 
(in English) RGB color model / HSI color model / saturation correction / gamut / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 349, SIS2017-49, pp. 89-94, Dec. 2017.
Paper # SIS2017-49 
Date of Issue 2017-12-07 (SIS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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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Conference Information
Committee SIS  
Conference Date 2017-12-14 - 2017-12-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Tottori Prefectural Center for Lifelong Learning 
Topics (in Japanese) (See Japanese page) 
Topics (in English) System on Silicon, Short Range Wireless Systems, etc. 
Paper Information
Registration To SIS 
Conference Code 2017-12-SIS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Color Image Enhancement in HSI Color Space with Saturation Correction 
Sub Title (in English)  
Keyword(1) RGB color model  
Keyword(2) HSI color model  
Keyword(3) saturation correction  
Keyword(4) gamut  
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1st Author's Name Minako Kamiyama  
1st Author's Affiliation Tokyo City University (Tokyo City Univ.)
2nd Author's Name Akira Taguchi  
2nd Author's Affiliation Tokyo City University (Tokyo City Univ.)
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Speaker Author-1 
Date Time 2017-12-15 10:30:00 
Presentation Time 20 minutes 
Registration for SIS 
Paper # SIS2017-49 
Volume (vol) vol.117 
Number (no) no.349 
Page pp.89-94 
#Pages
Date of Issue 2017-12-07 (SIS) 


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