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    Local white balance under mixed illumination using flash photography
    5.
    发明授权
    Local white balance under mixed illumination using flash photography 有权

    公开(公告)号：US10070111B2

    公开(公告)日：2018-09-04

    申请号：US14978605

    申请日：2015-12-22

    Applicant: ADOBE SYSTEMS INCORPORATED

    Inventor： Kalyan K. Sunkavalli ,  Zhuo Hui ,  Sunil Hadap

    IPC: H04N9/73 ,  H04N5/225 ,  G06K9/46 ,  G06K9/62 ,  G06K9/52 ,  G06T7/60 ,  G06T7/40

    Abstract: Embodiments of the present invention facilitate automatically white-balancing images captured under mixed lighting conditions. More particularly, some embodiments are directed to leveraging flash photography to capture two images in quick succession, one with the flash activated and one without. By combining these two images, a per-pixel white balance kernel can be automatically determined and used to generate a white-balanced image without requiring any user input or user assumptions about the lighting in the scene. In embodiments, the white balance kernels for pixels that lie in the shadow or appear as specular spots are masked and can be interpolated from the white balance kernels at unmasked kernels. Motion effects between the flash and non-flash images may also be reduced.

    IMAGE LIGHTING TRANSFER VIA MULTI-DIMENSIONAL HISTOGRAM MATCHING
    6.
    发明申请
    IMAGE LIGHTING TRANSFER VIA MULTI-DIMENSIONAL HISTOGRAM MATCHING 审中-公开

    公开(公告)号：US20180061028A1

    公开(公告)日：2018-03-01

    申请号：US15253655

    申请日：2016-08-31

    Applicant: ADOBE SYSTEMS INCORPORATED

    Inventor： Kalyan K. Sunkavalli ,  Sunil Hadap ,  Elya Shechtman ,  Zhixin Shu

    IPC: G06T5/40 ,  G06T11/00 ,  G06T5/50

    CPC classification number: G06T5/50 ,  G06T11/00 ,  G06T2207/10024

    Abstract: Embodiments of the present invention provide systems, methods, and computer storage media directed at relighting a target image based on a lighting effect from a reference image. In one embodiment, a target image and a reference image are received, the reference image includes a lighting effect desired to be applied to the target image. A lighting transfer is performed using color data and geometrical data associated with the reference image and color data and geometrical data associated with the target image. The lighting transfer causes generation of a relit image that corresponds with the target image having a lighting effect of the reference image. The relit image is provided for display to a user via one or more output devices. Other embodiments may be described and/or claimed.

    Image Color and Tone Style Transfer
    8.
    发明申请
    Image Color and Tone Style Transfer 有权

    公开(公告)号：US20170139572A1

    公开(公告)日：2017-05-18

    申请号：US14944019

    申请日：2015-11-17

    Applicant: Adobe Systems Incorporated

    Inventor： Kalyan K. Sunkavalli ,  Zhe Lin ,  Xiaohui Shen ,  Joon-Young Lee

    IPC: G06F3/0484 ,  G06T11/00 ,  G06F3/0488

    CPC classification number: G06F3/04845 ,  G06F3/04842 ,  G06F3/0488 ,  G06T11/001

    Abstract: In embodiments of image color and tone style transfer, a computing device implements an image style transfer algorithm to generate a modified image from an input image based on a color style and a tone style of a style image. A user can select the input image that includes color features, as well as select the style image that includes an example of the color style and the tone style to transfer to the input image. A chrominance transfer function can then be applied to transfer the color style to the input image, utilizing a covariance of an input image color of the input image to control modification of the input image color. A luminance transfer function can also be applied to transfer the tone style to the input image, utilizing a tone mapping curve based on a non-linear optimization to estimate luminance parameters of the tone mapping curve.

    Sky Editing Based On Image Composition
    9.
    发明申请
    Sky Editing Based On Image Composition 审中-公开

    公开(公告)号：US20180374199A1

    公开(公告)日：2018-12-27

    申请号：US16119709

    申请日：2018-08-31

    Applicant: Adobe Systems Incorporated

    Inventor： Xiaohui Shen ,  Yi-Hsuan Tsai ,  Kalyan K. Sunkavalli ,  Zhe Lin

    IPC: G06T5/00 ,  G06T7/90 ,  G06F17/30 ,  G06T11/00 ,  G06F3/0482 ,  G06F3/0484

    Abstract: Embodiments of the present disclosure relate to a sky editing system and related processes for sky editing. The sky editing system includes a composition detector to determine the composition of a target image. A sky search engine in the sky editing system is configured to find a reference image with similar composition with the target image. Subsequently, a sky editor replaces content of the sky in the target image with content of the sky in the reference image. As such, the sky editing system transforms the target image into a new image with a preferred sky background.

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