Paper Abstract and Keywords |
Presentation |
2012-03-07 15:40
A Design of Low-Power Color Interporation Circuits Based on Color Difference Kouta Omobayashi, Tsuyoshi Iwagaki, Hideyuki Ichihara, Tomoo Inoue (Hiroshima City Univ.) VLD2011-143 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Color interpolation, reproducing the original colors from restricted color information of a given image, is an im- portant technique implemented for image processing devices such as digital still cameras. This paper studies a design of low-power color interpolation circuits based on uniform color space. Uniform color space is designed so that the distance in the space corresponds to perceptual one, and accordingly designing the circuits for color interpolation based on the color space could maintain the color quality of the interpolated images. According to the property of uniform color space at the viewpoint of color interpolation, we propose an algorithm of color interpolation aiming to reduce the color difference in the uniform color space, based on the linear color interpolation algorithm [1]. The proposed algorithm focuses on the variation of color difference to the level of color gradations. Based on the proposed algorithm and the basic idea of [2], we present a design of low-power color interpolation circuits, and discuss the size and performance of the designed circuits. Deriving an optimal set parameters in the color interpolation algorithm from experimental evaluation, the study analyzes the effectiveness of the proposed algorithm, and discusses a method for designing high-quality small-size color interpolation circuits. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
color interpolation / color difference / uniform color space / level of color gradations / low-power circuit / / / |
Reference Info. |
IEICE Tech. Rep., vol. 111, no. 450, VLD2011-143, pp. 139-144, March 2012. |
Paper # |
VLD2011-143 |
Date of Issue |
2012-02-28 (VLD) |
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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VLD2011-143 |
Conference Information |
Committee |
VLD |
Conference Date |
2012-03-06 - 2012-03-07 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
B-con Plaza |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Design Methodologies for System-on-a-chip |
Paper Information |
Registration To |
VLD |
Conference Code |
2012-03-VLD |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Design of Low-Power Color Interporation Circuits Based on Color Difference |
Sub Title (in English) |
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Keyword(1) |
color interpolation |
Keyword(2) |
color difference |
Keyword(3) |
uniform color space |
Keyword(4) |
level of color gradations |
Keyword(5) |
low-power circuit |
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1st Author's Name |
Kouta Omobayashi |
1st Author's Affiliation |
Hiroshima City University (Hiroshima City Univ.) |
2nd Author's Name |
Tsuyoshi Iwagaki |
2nd Author's Affiliation |
Hiroshima City University (Hiroshima City Univ.) |
3rd Author's Name |
Hideyuki Ichihara |
3rd Author's Affiliation |
Hiroshima City University (Hiroshima City Univ.) |
4th Author's Name |
Tomoo Inoue |
4th Author's Affiliation |
Hiroshima City University (Hiroshima City Univ.) |
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Speaker |
Author-1 |
Date Time |
2012-03-07 15:40:00 |
Presentation Time |
25 minutes |
Registration for |
VLD |
Paper # |
VLD2011-143 |
Volume (vol) |
vol.111 |
Number (no) |
no.450 |
Page |
pp.139-144 |
#Pages |
6 |
Date of Issue |
2012-02-28 (VLD) |
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