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Title:
GAMUT MAPPING METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/043164
Kind Code:
A1
Abstract:
The present disclosure provides a gamut mapping method and system. The method provided by the embodiments of the present disclosure comprises: obtaining the brightness value of each of sampling points corresponding to image data of a transmission end on the basis of a three-dimensional mapping table; performing equal-brightness cutting on a three-dimensional gamut model of the transmission end and a three-dimensional gamut model of a display end separately on the basis of the brightness value of each of the sampling points, to form a corresponding equal-brightness two-dimensional surface; and performing color mapping on the basis of the formed equal-brightness two-dimensional surface, and outputting mapping data. Hence, according to the method of the present disclosure, during gamut mapping, the brightness and tone are kept unchanged, and precise matching of three-dimensional gamut mapping from a transmission gamut to a display gamut is implemented, thereby avoiding the problems of image distortion or a display error or the like due to mapping mismatch between the transmission gamut and the display gamut.

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Inventors:
ZHANG XIAODONG (CN)
Application Number:
PCT/CN2020/113021
Publication Date:
March 11, 2021
Filing Date:
September 02, 2020
Export Citation:
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Assignee:
SHENZHEN TCL NEW TECH CO LTD (CN)
International Classes:
H04N9/64; H04N1/60
Foreign References:
CN102625111A2012-08-01
CN104702815A2015-06-10
CN103093412A2013-05-08
CN102598114A2012-07-18
CN101583040A2009-11-18
EP0961488A21999-12-01
EP3301902A12018-04-04
CN201910828423A2019-09-03
Other References:
YU SILE ET AL.: "The Principles of Television"
Attorney, Agent or Firm:
JOHNSON INTELLECTUAL PROPERTY AGENCY(SHENZHEN) (CN)
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