公开(公告)号：US09105088B1

公开(公告)日：2015-08-11

申请号：US14046919

申请日：2013-10-04

Applicant: Google Inc.

Inventor： Ryan Petrie ,  Thor Carpenter

IPC: G06K9/40 ,  G06T5/00

CPC classification number: G06T5/003 ,  G06T5/002 ,  G06T5/004 ,  G06T5/50 ,  G06T2207/10004 ,  G06T2207/20012 ,  G06T2207/20192 ,  G06T2207/20221 ,  G06T2207/30201

Abstract: Implementations relate to blurring an image while preserving details in the image. In some implementations, a method includes receiving an input image and creating a blurred image from the input image by averaging pixel intensities of a plurality of pixels in the input image. The method creates a transparency mask from the input image, where the transparency mask indicates transparency values for pixel positions of the input image based on edges detected in the input image. The pixel intensities of the input image and pixel intensities of the blurred image are composited based on the transparency values of the transparency mask to create an output image having greater blur than the input image in areas outside the detected edges.

Abstract translation: 实现涉及模糊图像同时保留图像中的细节。 在一些实现中，一种方法包括通过对输入图像中的多个像素的像素强度进行平均来从输入图像接收输入图像并创建模糊图像。 该方法从输入图像创建透明度掩码，其中透明掩码基于输入图像中检测到的边缘来指示输入图像的像素位置的透明度值。 基于透明度掩模的透明度值来合成输入图像的像素强度和模糊图像的像素强度，以在检测到的边缘之外的区域中产生具有比输入图像更大的模糊的输出图像。