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公开(公告)号:US20240221136A1
公开(公告)日:2024-07-04
申请号:US18604784
申请日:2024-03-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Weiwei XU , Jinsong WEN , Lei WU , Zhongke MA , Yanbing JIA , Quanhe YU , Zizhong WANG , Yichuan WANG , Hu CHEN
CPC classification number: G06T5/92 , G06T7/11 , G06T2207/10016 , G06T2207/10024 , G06T2207/20208
Abstract: This application provides a tone mapping method including: obtaining a to-be-displayed image frame and metadata which includes at least one metadata information unit; segmenting the to-be-displayed image frame into a plurality of segmentation regions in a target segmentation manner, and determining a correspondence between the plurality of segmentation regions and the at least one metadata information unit; and for an ith pixel: determining, for a plurality of pixels included in a preset region, at least one related segmentation region to which the plurality of pixels belong, and determining a related metadata information unit corresponding to each related segmentation region; obtaining a tone mapping subvalue corresponding to the related segmentation region, and allocating a corresponding weighting factor to the related segmentation region; obtaining a tone mapping value based on the tone mapping subvalue and the weighting factor; and performing tone mapping based on the tone mapping value.