Fast Edge Preserving 2D Smoothing Filter Using Indicator Function
Fast Edge Preserving 2D Smoothing Filter Using Indicator Function
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DOI：
10.1587/transinf.2018edp7437
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发表时间：
2019-10-01
影响因子：
0.7
通讯作者：
Ikehara, Masaaki
中科院分区：
文献类型：
--
作者：
Abiko, Ryo;Ikehara, Masaaki
边缘保持平滑滤波在平滑纹理的同时保留了尖锐边缘的信息。在图像处理中，这类滤波器被用作许多应用的基本过程。本文提出了一种新的保边缘平滑滤波方法。该方法使用2D局部滤波对图像进行平滑处理，并利用指示函数来限制滤波后像素的范围以保持边缘。为了定义指示器函数，我们利用边缘信息重新计算每个像素之间的距离。新域中的邻近像素用于平滑。由于我们的方法限制了用于过滤的像素，所以它的运行时间相当快。我们展示了我们的新的保边平滑方法在一些应用中的有效性。
Edge-preserving smoothing filter smoothes the textures while preserving the information of sharp edges. In image processing, this kind of filter is used as a fundamental process of many applications. In this paper, we propose a new approach for edge-preserving smoothing filter. Our method uses 2D local filter to smooth images and we apply indicator function to restrict the range of filtered pixels for edge-preserving. To define the indicator function, we recalculate the distance between each pixel by using edge information. The nearby pixels in the new domain are used for smoothing. Since our method constrains the pixels used for filtering, its running time is quite fast. We demonstrate the usefulness of our new edge-preserving smoothing method for some applications.