Paper Abstract and Keywords |
Presentation |
2019-12-13 10:00
Hue-preserving Color Image Enhancement Method by Using Ideal Distribution and Gradient Norm-based Weighted Histogram Yoshiaki Ueda (Fukuoka Univ.), Noriaki Suetake (Yamaguchi Univ.) SIS2019-31 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this report, we propose a hue-preserving color image enhancement method by using an ideal coefficient distribution and gradient norm-based weighted histogram. In addition, it is described that the relationship between the color manipulation of the proposed method and that in the HSV color space. In our algorithm, each pixel is represented by the convex combination of white, black, and its pure color. The coefficients of the convex combination are transformed so that those distribution closes to an ideal coefficient distribution in order to enhance intensity contrast and colorfulness. The ideal coefficient distribution is derived from uniform distribution of the RGB color space. Furthermore, a gradient norm-based weighted histogram is used to suppress the image quality degradation in the flat region. Experimental results show that the proposed algorithm can enhance the intensity contrast and the colorfulness while suppress the degradation in the flat region. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
color image enhancement / constant hue plane / convex combination / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 119, no. 335, SIS2019-31, pp. 39-44, Dec. 2019. |
Paper # |
SIS2019-31 |
Date of Issue |
2019-12-05 (SIS) |
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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SIS2019-31 |
Conference Information |
Committee |
SIS |
Conference Date |
2019-12-12 - 2019-12-13 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Okayama University of Science |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Smart Personal Systems, etc. |
Paper Information |
Registration To |
SIS |
Conference Code |
2019-12-SIS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Hue-preserving Color Image Enhancement Method by Using Ideal Distribution and Gradient Norm-based Weighted Histogram |
Sub Title (in English) |
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color image enhancement |
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constant hue plane |
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convex combination |
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1st Author's Name |
Yoshiaki Ueda |
1st Author's Affiliation |
Fukuoka University (Fukuoka Univ.) |
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Noriaki Suetake |
2nd Author's Affiliation |
Yamaguchi University (Yamaguchi Univ.) |
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Speaker |
Author-1 |
Date Time |
2019-12-13 10:00:00 |
Presentation Time |
20 minutes |
Registration for |
SIS |
Paper # |
SIS2019-31 |
Volume (vol) |
vol.119 |
Number (no) |
no.335 |
Page |
pp.39-44 |
#Pages |
6 |
Date of Issue |
2019-12-05 (SIS) |
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