公开(公告)号：EP2992673B1

公开(公告)日：2019-10-16

申请号：EP14792324.7

申请日：2014-04-21

Applicant: BYD Company Limited

Inventor： LIU, Huaren ,  MAO, Shuijiang ,  FU, Jingjun ,  FENG, Wei

IPC: H04N5/235 ,  H04N9/04

公开(公告)号：EP3028250A1

公开(公告)日：2016-06-08

申请号：EP14832364.5

申请日：2014-05-16

Applicant: BYD Company Limited

Inventor： LIU, Huaren ,  MAO, Shuijiang ,  FU, Jingjun ,  FENG, Wei

IPC: G06T5/00 ,  H04N5/208 ,  G06T7/00 ,  H04N5/14 ,  H04N5/232

CPC classification number: G06T5/001 ,  G06T5/003 ,  G06T7/13 ,  G06T2207/20192 ,  H04N5/142 ,  H04N5/208 ,  H04N5/23235 ,  H04N5/357

Abstract: A method and a device for enhancing an edge of an image are provided. The method includes: obtaining a first gradient value of a pixel; determining whether the pixel is at a rough edge according to the first gradient value; if yes, obtaining a first edge enhancement value of the pixel and obtaining a first edge enhancement result of the pixel according to the first edge enhancement value; if no, obtaining a second gradient value of the pixel; determining whether the pixel is at a tiny edge according to the second gradient value; if yes, obtaining a second edge enhancement value of the pixel and obtaining a second edge enhancement result of the pixel according to the second edge enhancement value; if no, obtaining the pixel value of the pixel as the edge enhancement result of the pixel; and repeating above steps until each pixel of the image is processed.

Abstract translation: 提供了一种用于增强图像边缘的方法和装置。 该方法包括：获得像素的第一梯度值; 根据第一梯度值确定像素是否处于粗糙边缘; 如果是，则获得所述像素的第一边缘增强值，并根据所述第一边缘增强值获得所述像素的第一边缘增强结果; 如果否，则获得像素的第二梯度值; 根据第二梯度值确定像素是否处于微小边缘; 如果是，则获得像素的第二边缘增强值，并根据第二边缘增强值获得像素的第二边缘增强结果; 如果否，则获得像素的像素值作为像素的边缘增强结果; 并重复上述步骤直到图像的每个像素被处理。