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    Scalable chromatic adaptation
    1.
    发明授权
    Scalable chromatic adaptation 有权

    公开(公告)号：US10354613B2

    公开(公告)日：2019-07-16

    申请号：US15621459

    申请日：2017-06-13

    Applicant: Apple Inc.

    Inventor： Gabriel Marcu ,  Kenneth Greenebaum ,  Lu Zhang ,  Jiaying Wu ,  Ian Hendry

    IPC: G09G5/02 ,  G09G5/06 ,  G06T11/00 ,  H04N1/60 ,  H04N5/57 ,  H04N9/73

    Abstract: Scalable color balancing techniques for processing images to be presented on displays are described. One technique includes receiving ambient light color information from an ambient light sensor and input image data to be presented via a display coincident with receiving the ambient light color information. The display may have a first white point at a time prior to receiving the input image data. The technique may include determining a second white point for the display based on the input image data and the ambient light color information. The first and second white points may differ from each other. The technique may also include generating one or more chromatic adaptation transforms (CATs) based on the white points. Output image data may be generated based on applying the one or more CATs to the input image data. The output image data may be presented via the display. Other embodiments are described.

    Scalable Chromatic Adaptation
    3.
    发明申请
    Scalable Chromatic Adaptation 审中-公开

    公开(公告)号：US20180350322A1

    公开(公告)日：2018-12-06

    申请号：US15621459

    申请日：2017-06-13

    Applicant: Apple Inc.

    Inventor： Gabriel Marcu ,  Kenneth Greenebaum ,  Lu Zhang ,  Jiaying Wu ,  Ian Hendry

    IPC: G09G5/02

    CPC classification number: G09G5/06 ,  G09G2340/06 ,  G09G2360/144

    Abstract: Scalable color balancing techniques for processing images to be presented on displays are described. One technique includes receiving ambient light color information from an ambient light sensor and input image data to be presented via a display coincident with receiving the ambient light color information. The display may have a first white point at a time prior to receiving the input image data. The technique may include determining a second white point for the display based on the input image data and the ambient light color information. The first and second white points may differ from each other. The technique may also include generating one or more chromatic adaptation transforms (CATs) based on the white points. Output image data may be generated based on applying the one or more CATs to the input image data. The output image data may be presented via the display. Other embodiments are described.

    Backwards Compatible Extended Image Format
    4.
    发明申请
    Backwards Compatible Extended Image Format 有权
    向后兼容扩展图像格式

    公开(公告)号：US20150093023A1

    公开(公告)日：2015-04-02

    申请号：US14042447

    申请日：2013-09-30

    Applicant: Apple Inc.

    Inventor： Kenneth Greenebaum ,  Ian Hendry ,  Ian Ollmann ,  David Hayward ,  Brijesh Tripathi

    IPC: G06T9/00 ,  H04N19/463 ,  H04N19/85

    CPC classification number: H04N19/85 ,  G06T9/00 ,  G11B27/034 ,  H04N19/186 ,  H04N19/30 ,  H04N19/33 ,  H04N19/463 ,  H04N21/234327 ,  H04N21/2662 ,  H04N21/845

    Abstract: Techniques are provided for encoding an extended image such that it is backwards compatible with existing decoding devices. An extended image format is defined such that the extended image format is consistent with an existing image format over the full range of the existing image format. Because the extended image format is consistent with the existing image format over the full range of the existing image format, additional image information that is included in an extended image can be extracted from the extended image. A base version of an image (expressed using the existing image format) may be encoded in a payload portion and the extracted additional information may be stored in a metadata portion of a widely supported image file format.

    Abstract translation: 提供了用于对扩展图像进行编码的技术，使得其与现有的解码装置向后兼容。 定义扩展图像格式，使得扩展图像格式与现有图像格式的全部范围内的现有图像格式一致。 由于扩展图像格式与现有图像格式的全部范围内的现有图像格式一致，所以可以从扩展图像中提取包含在扩展图像中的附加图像信息。 图像的基本版本（使用现有图像格式表示）可以被编码在有效载荷部分中，并且所提取的附加信息可以存储在广泛支持的图像文件格式的元数据部分中。

    Backwards compatible extended image format
    6.
    发明授权
    Backwards compatible extended image format 有权
    向后兼容的扩展图像格式

    公开(公告)号：US09036908B2

    公开(公告)日：2015-05-19

    申请号：US14042447

    申请日：2013-09-30

    Applicant: Apple Inc.

    Inventor： Kenneth Greenebaum ,  Ian Hendry ,  Ian Ollmann ,  David Hayward ,  Brijesh Tripathi

    IPC: G06T9/00 ,  H04N19/85 ,  H04N19/463

    CPC classification number: H04N19/85 ,  G06T9/00 ,  G11B27/034 ,  H04N19/186 ,  H04N19/30 ,  H04N19/33 ,  H04N19/463 ,  H04N21/234327 ,  H04N21/2662 ,  H04N21/845

    Abstract: Techniques are provided for encoding an extended image such that it is backwards compatible with existing decoding devices. An extended image format is defined such that the extended image format is consistent with an existing image format over the full range of the existing image format. Because the extended image format is consistent with the existing image format over the full range of the existing image format, additional image information that is included in an extended image can be extracted from the extended image. A base version of an image (expressed using the existing image format) may be encoded in a payload portion and the extracted additional information may be stored in a metadata portion of a widely supported image file format.

    Abstract translation: 提供了用于对扩展图像进行编码的技术，使得其与现有的解码装置向后兼容。 定义扩展图像格式，使得扩展图像格式与现有图像格式的全部范围内的现有图像格式一致。 由于扩展图像格式与现有图像格式的全部范围内的现有图像格式一致，所以可以从扩展图像中提取包含在扩展图像中的附加图像信息。 图像的基本版本（使用现有图像格式表示）可以被编码在有效载荷部分中，并且所提取的附加信息可以存储在广泛支持的图像文件格式的元数据部分中。

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