Method for image processing using local statistics convolution

    公开(公告)号:US10152781B2

    公开(公告)日:2018-12-11

    申请号:US15461284

    申请日:2017-03-16

    Applicant: Google Inc.

    Inventor: Nils Kokemohr

    Abstract: A method for filtering a digital image, comprising segmenting the digital image into a plurality of tiles; computing tile histograms corresponding to each of the plurality of tiles; deriving a plurality of tile transfer functions from the tile histograms preferably using 1D convolutions; interpolating a tile transfer function from the plurality of tile transfer functions; and filtering the digital image with the interpolated tile transfer function. Many filters otherwise difficult to conceive or to implement are possible with this method, including an edge-preserving smoothing filter, HDR tone mapping, edge invariant gradient or entropy detection, image upsampling, and mapping coarse data to fine data.

    Image editing using selective editing tools

    公开(公告)号:US09811933B2

    公开(公告)日:2017-11-07

    申请号:US14744332

    申请日:2015-06-19

    Applicant: Google Inc.

    Inventor: Nils Kokemohr

    CPC classification number: G06T11/60 G06K9/033 G06T5/00

    Abstract: Implementations relate to editing images with selective editing tools. In some implementations, a computer-implemented method for an image editing program causes a display of an image and receives user input from a user to the image editing program, the user input indicative of selection of a selective editing tool. The method restores the image to a previous state in which a first modification to one or more pixel values of the image is omitted, where the first modification resulted from previous application of a first edit operation to the image. The method applies a second edit operation to one or more local areas of the image as indicated by selection of the selective editing tool by the user input, and the applying causes a second modification to the image.

    METHOD FOR DYNAMIC RANGE EDITING
    4.
    发明申请

    公开(公告)号:US20160171672A1

    公开(公告)日:2016-06-16

    申请号:US15051731

    申请日:2016-02-24

    Applicant: Google Inc.

    Inventor: Nils Kokemohr

    CPC classification number: G06T5/009 G06K9/36 G06K9/52 G06T2207/20208

    Abstract: A method of displaying a high dynamic range image, comprising receiving the high dynamic range image, calculating a first set of tone mapping parameters as a function of the high dynamic range image, sub-sampling the first set of tone mapping parameters at a first resolution to create a first sub-sampled parameter set, creating a first tone-mapped image by processing the high dynamic range image as a function of the first sub-sampled parameter set, and displaying the first tone-mapped image. A method of composting a plurality of versions of an image to create the high dynamic range image is also disclosed such that the compositing may be modified as a function of received user input.

    Method for noise-robust color changes in digital images
    5.
    发明授权
    Method for noise-robust color changes in digital images 有权
    数字图像中噪声鲁棒颜色变化的方法

    公开(公告)号:US09407790B2

    公开(公告)日:2016-08-02

    申请号:US14485694

    申请日:2014-09-13

    Applicant: Google Inc.

    Inventor: Nils Kokemohr

    Abstract: A method for applying filters to digital images with minimal amplification of image noise, comprising filtering the digital image with an EPDR edge-preserving detail-reducing filter, determining a matrix from the filtered image as a result of one or more structure adaptive functions, and modifying the digital image using the filter, adjusted by the matrix values, to produce an enhanced digital image. The order of processing may be inverted, by first determining the matrix and then filtering the matrix with the edge-preserving detail-reducing filter.

    Abstract translation: 一种用于以最小的图像噪声放大对数字图像应用滤波器的方法,包括用EPDR边缘保留细节减少滤波器对数字图像进行滤波,作为一个或多个结构自适应函数的结果从滤波图像中确定矩阵,以及 使用由矩阵值调整的滤波器来修改数字图像,以产生增强的数字图像。 可以通过首先确定矩阵然后用边缘保留细节减少滤波器来过滤矩阵来反转处理顺序。

    Compartmentalized image editing system
    6.
    发明授权
    Compartmentalized image editing system 有权
    分区图像编辑系统

    公开(公告)号:US09285971B2

    公开(公告)日:2016-03-15

    申请号:US13920555

    申请日:2013-06-18

    Applicant: Google Inc.

    Inventor: Nils Kokemohr

    CPC classification number: G06F3/04845 G06F3/04817 G06F3/0482 G06F3/0486

    Abstract: Implementations generally relate to applying image enhancements. In some implementations, a method includes providing a selection of image enhancements to a user. The method also includes causing the image enhancements to be displayed as a collection of icons, where the collection includes icons representing different image enhancements, and where one or more of the image enhancements are applied to one or more images. The method also includes enabling the user to select any icon in the collection in order to modify the collection, where the selected icon has a corresponding selected image enhancement. The method also includes hiding icons associated with image enhancements that are subsequent image enhancements relative to the selected image enhancement. The method also includes deactivating the subsequent image enhancements corresponding to the hidden icons.

    Abstract translation: 实现通常涉及应用图像增强。 在一些实现中,一种方法包括提供对用户的图像增强的选择。 该方法还包括使得图像增强被显示为图标的集合,其中集合包括表示不同图像增强的图标,并且其中一个或多个图像增强被应用于一个或多个图像。 该方法还包括使用户能够选择集合中的任何图标,以便修改集合,其中所选择的图标具有相应的所选图像增强。 该方法还包括隐藏与图像增强相关联的图标,其是相对于所选择的图像增强的后续图像增强。 该方法还包括去激活对应于隐藏图标的后续图像增强。

    COMPARTMENTALIZED IMAGE EDITING SYSTEM
    7.
    发明申请
    COMPARTMENTALIZED IMAGE EDITING SYSTEM 有权
    分层图像编辑系统

    公开(公告)号:US20130346898A1

    公开(公告)日:2013-12-26

    申请号:US13920555

    申请日:2013-06-18

    Applicant: Google Inc.

    Inventor: Nils Kokemohr

    CPC classification number: G06F3/04845 G06F3/04817 G06F3/0482 G06F3/0486

    Abstract: Implementations generally relate to applying image enhancements. In some implementations, a method includes providing a selection of image enhancements to a user. The method also includes causing the image enhancements to be displayed as a collection of icons, where the collection includes icons representing different image enhancements, and where one or more of the image enhancements are applied to one or more images. The method also includes enabling the user to select any icon in the collection in order to modify the collection, where the selected icon has a corresponding selected image enhancement. The method also includes hiding icons associated with image enhancements that are subsequent image enhancements relative to the selected image enhancement. The method also includes deactivating the subsequent image enhancements corresponding to the hidden icons.

    Abstract translation: 实现通常涉及应用图像增强。 在一些实现中,一种方法包括提供对用户的图像增强的选择。 该方法还包括使得图像增强被显示为图标的集合,其中集合包括表示不同图像增强的图标,并且其中一个或多个图像增强被应用于一个或多个图像。 该方法还包括使用户能够选择集合中的任何图标,以便修改集合,其中所选择的图标具有相应的所选图像增强。 该方法还包括隐藏与图像增强相关联的图标,其是相对于所选择的图像增强的后续图像增强。 该方法还包括去激活对应于隐藏图标的后续图像增强。

    Distortion of digital images using spatial offsets from image reference points

    公开(公告)号:US09786031B2

    公开(公告)日:2017-10-10

    申请号:US15295854

    申请日:2016-10-17

    Applicant: Google Inc.

    Inventor: Nils Kokemohr

    Abstract: A method for distorting a digital image comprising receiving the coordinates of one or more than one image reference point defined by a user within the digital image, receiving one or more than one spatial offset assigned by the user and associated with the coordinates of the one or more than one defined image reference point, providing a mixing function algorithm embodied on a computer-readable medium for distorting the digital image, calculating an offset matrix by applying the mixing function algorithm based on the one or more than one spatial offset and the coordinates of the one or more than one defined image reference point; and distorting the digital image by application of the offset matrix. A graphic tag may be associated with each of the defined image reference points and displayed over the digital image, and the assignment of the spatial offset may be accomplished by movement of the graphic tag with the pointing device. Abstract image reference points may be used to limit distortion.

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