IMAGE PROCESSING METHOD AND APPARATUS
    2.
    发明公开

    公开(公告)号:EP4411645A1

    公开(公告)日:2024-08-07

    申请号:EP22897851.6

    申请日:2022-11-23

    IPC分类号: G06T9/00

    CPC分类号: G06T3/40 G06T9/00

    摘要: This application provides a picture processing method and an apparatus. At an encoder side, the method includes: The encoder side obtains a to-be-processed picture, obtains a plurality of groups of visual sensory experience parameters, and encodes the to-be-processed picture and the plurality of groups of visual sensory experience parameters. At a decoder side, the method includes: The decoder side obtains a to-be-processed picture, obtains a zoom-in operation instruction, obtains one or more groups of visual sensory experience parameters corresponding to one or more local pictures, and separately processes the corresponding local picture based on the one or more groups of visual sensory experience parameters to obtain a processed local picture. In this application, a picture presented by a zoomed-in region can be used to simulate visual sensory experience for a real scene that is of a to-be-zoomed-in region and that is perceived by human eyes. This resolves a problem that a zoomed-in picture is unclear and blurred, and can improve visual zoom-in experience of a user.

    TONE MAPPING METHOD, DEVICE AND SYSTEM
    3.
    发明公开

    公开(公告)号:EP4390843A1

    公开(公告)日:2024-06-26

    申请号:EP22868808.1

    申请日:2022-07-07

    IPC分类号: G06T7/11

    CPC分类号: G06T5/92

    摘要: This application provides a tone mapping method and system, and a device, to provide a technical solution that can improve tone mapping effect. The method includes: obtaining a to-be-displayed image frame and metadata, where the metadata 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, based on the correspondence, a related metadata information unit corresponding to each related segmentation region; obtaining, based on the related metadata information unit, 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 corresponding to the related segmentation region and the weighting factor; and performing tone mapping based on the tone mapping value.

    IMAGE PROCESSING METHOD AND RELATED DEVICE
    4.
    发明公开

    公开(公告)号:EP4250722A1

    公开(公告)日:2023-09-27

    申请号:EP21905455.8

    申请日:2021-11-23

    IPC分类号: H04N9/64 H04N9/73

    摘要: This application discloses an image processing method and a related apparatus, to support display of an HDR image, display more dynamic ranges and image details, provide richer colors, and improve user experience. The image processing method includes: obtaining a first RGB image, where the first RGB image is an RGB image sensed by a photographing apparatus; converting the first RGB image into a second RGB image, where the second RGB image is an image meeting a BT2020 color gamut range; determining a first luminance value corresponding to the second RGB image, where the first luminance value reflects maximum luminance of each frame of image in the second RGB image; determining a target image based on the first luminance value and the second RGB image; and sending the target image to a display apparatus, so that the display apparatus displays the target image.