A Study on the Contour-Preserving Image Filtering for Noise Removal

잡음 제거를 위한 윤곽선 보존 기법에 관한 연구

  • 유충웅 (徐羅伐大學 電子科) ;
  • 유대현 (韓世大學校 情報通信工學科) ;
  • 배강열 (晉州産業大學校産業自動化工學科)
  • Published : 1999.12.01

Abstract

In this paper, a simple contour-preserving filtering algorithm is proposed. The goal of the contour-preserving filtering method is to remove noise ad granularity as the preprocessing for the image segmentation procedure. Our method finds edge map and separates the image into the edge region and the non-edge region using this edge map. For the non-edge region, typical smoothing filters could be used to remove the noise and the small areas during the segmentation procedure. The result of simulation shows that our method is slightly better than the typical methods such as the median filtering and gradient inverse weighted filtering in the point of view of analysis of variance (ANOVA).

Keywords