Journal of the Korean Institute of Telematics and Electronics T (전자공학회논문지T)
- Volume 36T Issue 4
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- Pages.24-29
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- 1999
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- 1226-9115(pISSN)
A Study on the Contour-Preserving Image Filtering for Noise Removal
잡음 제거를 위한 윤곽선 보존 기법에 관한 연구
- Yoo, Choong-Woong (Dept. of Electronic Eng., Sorabol college) ;
- Ryu, Dae-Hyun (Dept. of Information-Communication Eng. Hansei Univ.) ;
- Bae, Kang-Yeul (Dept. of Industrial Automation Eng., Jinju Nat'l Univ.)
- 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
- contour-reserving filtering;
- smoothing filter;
- median filtering;
- gradient inverse weighted filtering;
- preprocessing;
- segmentation;
- noise and granularity