TONE MAPPING METHOD AND APPARATUS FOR PANORAMIC IMAGE

WIPO Patent Application WO/2023/284503

A1

Provided in the present application are a tone mapping method and apparatus for a panoramic image. The tone mapping method for a panoramic image in the present application comprises: determining, from among a plurality of metadata information units, one or more target metadata information units of a first pixel point, wherein the plurality of metadata information units are obtained by means of parsing a bitstream, the first pixel point is any pixel point in a panoramic video two-dimensional plane projection image to be processed, the plurality of metadata information units correspond to a plurality of segmented regions comprised in a panoramic video three-dimensional sphere expression panorama image, and there is a mapping relationship between the panoramic video two-dimensional plane projection image and the panoramic video three-dimensional sphere expression panorama image; and performing tone mapping on a pixel value of the first pixel point according to the one or more target metadata information units, so as to obtain a target tone mapping value of the first pixel point. By means of the present application, the processing efficiency for a panoramic image can be improved.

XU WEIWEI (CN)
YU QUANHE (CN)
CHEN HU (CN)
WANG YICHUAN (CN)

PCT/CN2022/100495

January 19, 2023

June 22, 2022

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HUAWEI TECH CO LTD (CN)

G06T5/00

CN113052923A	2021-06-29
CN106899840A	2017-06-27
CN107230180A	2017-10-03
US20170256039A1	2017-09-07
CN202110794014A	2021-07-14

BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)

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