公开(公告)号：US20090220169A1

公开(公告)日：2009-09-03

申请号：US12038816

申请日：2008-02-28

申请人： Eric P. Bennett ,  Bradley Hinkel

发明人： Eric P. Bennett ,  Bradley Hinkel

IPC分类号： G06K9/40

CPC分类号： G06T5/004 ,  G06T5/20

摘要： A bilateral filter is implemented to allow a digital image to be enhanced while mitigating the formation of ringing artifacts or halos within the image. The bilateral filter allows the digital image to be decomposed into a detail feature image and a large-scale feature image, where the image's textures are primarily comprised within the detail image, and the image's edges are primarily comprised within the large-scale feature image. By decomposing the image into these two sub-images and then globally scaling their respective magnitudes, it is possible to adjust the textures within the image substantially independent of the edges in the image and vice versa. This allows the apparent amount of texture in the scene to be enhanced while mitigating the formation of ringing artifacts or halos around edges in the image.

摘要翻译： 实现双边滤波器以允许增强数字图像，同时减轻图像内的振铃伪像或光晕的形成。 双边滤波器允许将数字图像分解为细节特征图像和大尺寸特征图像，其中图像的纹理主要包含在细节图像内，并且图像的边缘主要包含在大尺度特征图像内。 通过将图像分解成这两个子图像，然后对其各自的幅度进行全局缩放，可以基本上独立于图像中的边缘来调整图像内的纹理，反之亦然。 这允许在减轻图像边缘周围的振铃伪像或晕圈的同时增强场景中的明显的纹理量。