A new filter for removal of salt and pepper noise

Author

Biswal, S. ; Bhoi, N.

Author_Institution

Dept. of Electron. & Telecommun. Eng., Veer Surendra Sai Univ. of Technol., Sambalpur, India

fYear

2013

fDate

7-8 Feb. 2013

Firstpage

141

Lastpage

144

Abstract

In this paper, we have proposed a new method for removal of salt and pepper noise from gray scale images. In this technique when the processing pixel is uncorrupted then it is left unchanged otherwise the neighbors are checked. When all the neighbors are corrupted i.e. having values 0´s or 255´s or both then we go for the mean of the window and the processing pixel is replaced with this mean value. When some of the neighbors are corrupted then we go for unsymmetric trimmed mean value. Simulations are carried out for different percentage of noise density. Experimental results shows that the proposed algorithm provides better result than the Median Filter (MF) and its variants in terms of Peak signal to Noise Ratio (PSNR) and Image Enhancement Factor (IEF).

Keywords

image denoising; image enhancement; median filters; IEF; MF; PSNR; gray scale images; image enhancement factor; median filter; noise density; peak signal to noise ratio; processing pixel; salt-pepper noise removal; unsymmetric trimmed mean value; Manganese; Noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Image Processing & Pattern Recognition (ICSIPR), 2013 International Conference on

Conference_Location

Coimbatore

Print_ISBN

978-1-4673-4861-4

Type

conf

DOI

10.1109/ICSIPR.2013.6497990

Filename

6497990