公开(公告)号：US08958640B1

公开(公告)日：2015-02-17

申请号：US13933075

申请日：2013-07-01

Applicant: Google Inc.

Inventor： Peter J McNerney ,  Aravind Krishnaswamy

IPC: G06K9/00 ,  G06T5/00

CPC classification number: H04N9/73

Abstract: In some implementations, a method provides color correction in images and includes determining multiple input groups of pixels of an image based on one or more pixel attributes of the pixels. Each of the input groups includes different pixels of the image than the other input groups. The method determines an individual neutral color associated with each of the input groups of pixels based on the colors of the pixels in the associated input group. An individual color correction associated with each of a number of output groups of pixels is determined based on one or more neutral colors associated with the input groups. The method applies each individual color correction to its associated output group of pixels, including adjusting the color of pixels in each output group to reduce color casts on the pixels.

Abstract translation: 在一些实现中，方法提供图像中的颜色校正，并且包括基于像素的一个或多个像素属性来确定图像的多个像素的输入组。 每个输入组包括与其他输入组不同的图像像素。 该方法基于相关联的输入组中的像素的颜色来确定与每个输入像素组相关联的单个中性色。 基于与输入组相关联的一个或多个中性颜色来确定与多个输出像素组中的每一个相关联的单独颜色校正。 该方法将每个单独的颜色校正应用于其相关联的输出像素组，包括调整每个输出组中的像素的颜色以减少像素上的色偏。