JCP 2012 Vol.7(4): 838-841 ISSN: 1796-203X
doi: 10.4304/jcp.7.4.838-841
doi: 10.4304/jcp.7.4.838-841
Application of Improved Median Filter on Image Processing
Rong Zhu1, Yong Wang2
1School Of Computer Science, Qufu Normal University, Rizhao, Shandong 276826, China
2The ExperimentCenter of Qufu Normal University Rizhao Campus, Rizhao, Shangdong, 276826, China
Abstract—Median filter is the most common method of clearing image noise. This paper proposes improved algorithm of median filter to remove sale and pepper noise of image. According to the characteristics of salt and pepper noise, the algorithm detects image noise, and establishes noise marked matrix, without processing the pixels marked as signal. The signal of the pixel is marked as not treated, labeled according to their pixel noise pollution in the neighborhood to take a different pixel weighted mean filter window size, weight pixel region by the noise points to determine the local histogram. Matlab experiments show that improved median filter can greatly reduce the time of clears image noise and it performs better than median filters on noise reduction while retaining edges of an image.
Index Terms—Image processing, median filter, improved median filter, histogram.
2The ExperimentCenter of Qufu Normal University Rizhao Campus, Rizhao, Shangdong, 276826, China
Abstract—Median filter is the most common method of clearing image noise. This paper proposes improved algorithm of median filter to remove sale and pepper noise of image. According to the characteristics of salt and pepper noise, the algorithm detects image noise, and establishes noise marked matrix, without processing the pixels marked as signal. The signal of the pixel is marked as not treated, labeled according to their pixel noise pollution in the neighborhood to take a different pixel weighted mean filter window size, weight pixel region by the noise points to determine the local histogram. Matlab experiments show that improved median filter can greatly reduce the time of clears image noise and it performs better than median filters on noise reduction while retaining edges of an image.
Index Terms—Image processing, median filter, improved median filter, histogram.
Cite: Rong Zhu, Yong Wang, "Application of Improved Median Filter on Image Processing," Journal of Computers vol. 7, no. 4, pp. 838-841, 2012.
PREVIOUS PAPER
Layout Dependent Phenomena A New Side-channel Power Model
General Information
ISSN: 1796-203X
Abbreviated Title: J.Comput.
Frequency: Bimonthly
Abbreviated Title: J.Comput.
Frequency: Bimonthly
Editor-in-Chief: Prof. Liansheng Tan
Executive Editor: Ms. Nina Lee
Abstracting/ Indexing: DBLP, EBSCO, ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat,etc
E-mail: jcp@iap.org
-
Nov 14, 2019 News!
Vol 14, No 11 has been published with online version [Click]
-
Mar 20, 2020 News!
Vol 15, No 2 has been published with online version [Click]
-
Dec 16, 2019 News!
Vol 14, No 12 has been published with online version [Click]
-
Sep 16, 2019 News!
Vol 14, No 9 has been published with online version [Click]
-
Aug 16, 2019 News!
Vol 14, No 8 has been published with online version [Click]
- Read more>>