The Modified Mean Filter to Remove AWGN
AWGN 제거를 위한 변형된 평균필터

Yinyu Gao, Nam-Ho Kim
2011 The Journal of the Korean Institute of Information and Communication Engineering  
The image signals are corrupted by various noises in signal processing and the noises caused the degradation phenomenon. gaussian noise occurs in the process of transmission. Many studies are being accomplished to restore those signals which corrupted by additive gaussian noise. In this paper, the algorithm is proposed to remove AWGN. The algorithm first calculates the mask's standard deviation and next according to the thresholds separated as three levels, then calculates the weight which for
more » ... e weight which for different location in the mask's pixels. At last the mean value of the modified mean filter's is the output. Also we compare existing methods through the simulation and using PSNR as the standard of judgement of improvement effect. 키워드 Weighed mean 필터, 가우시안 잡음, 표준편차, 마스크
doi:10.6109/jkiice.2011.15.5.1177 fatcat:pmdf66va7rd55d44jakrunp374