Title:
IMAGE ENCODING/DECODING METHOD AND DEVICE USING COLOR COORDINATE AXIS CONVERSION
Document Type and Number:
WIPO Patent Application WO/2020/091293
Kind Code:
A1
Abstract:
Disclosed is an image encoding/decoding method using a color coordinate axis conversion, comprising the steps of: acquiring pixel distribution information, on a first color coordinate system, about an image; determining, on the basis of the pixel distribution information, a first component having the widest variance from among the components of the first color coordinate system; acquiring an intermediate color coordinate system by rotating, around a starting point, a coordinate axis of the first color coordinate system so that the variance of the first component is maximized; determining a second component having the widest variance from among the components excluding the first component in the intermediate color coordinate system; acquiring a second color coordinate system by rotating, around the starting point, a coordinate axis of the intermediate color coordinate system so that the variance of the second component is maximized; and encoding the image on the basis of the pixel distribution information on the second color coordinate system.
Inventors:
KWON OH JIN (KR)
Application Number:
PCT/KR2019/013933
Publication Date:
May 07, 2020
Filing Date:
October 23, 2019
Export Citation:
Assignee:
INDUSTRY ACADEMIA COOPERATION GROUP OF SEJONG UNIV (KR)
International Classes:
H04N19/60; H04N19/186
Domestic Patent References:
| WO2004100504A2 | 2004-11-18 |
Foreign References:
| JP2011019204A | 2011-01-27 | |||
| KR20110096811A | 2011-08-31 | |||
| JP2014204332A | 2014-10-27 | |||
| KR20180026517A | 2018-03-12 |
Attorney, Agent or Firm:
E-SANG PATENT & TRADEMARK LAW FIRM (KR)
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