Restoration of Images Corrupted by High Density Salt & Pepper Noise through Adaptive Median Based Modified Mean Filter
R.Nisha R.Nisha · IOSR Journal of Electronics and Communication Engineering · 2013
In this paper an efficient algorithm is proposed for removal of salt & pepper noise from digital images.Salt and pepper noise in images is present due to bit errors in transmission or introduced during the signal acquisition stage.It represents itself as randomly occurring white and black pixels.This noise can be removed using standard Median Filter (SMF), Progressive Switched Median Filter (PSMF) under low density noise conditions.Decision Based Algorithm (DBA) and Modified Decision Based Unsymmetric Trimmed Median Filter (MDBUTMF) do not give better results at high noise density.So, in this project, this drawback will be overcome by using Adaptive Median based Modified Mean Filter (AMMF).This proposed algorithm shows better Peak Signal-to-Noise Ratio and clear image than the existing algorithm.