Removal of High Density Salt and Pepper Noise in Videos through MDBUTMF
V. Pranava Jyothy, Padmavathi Kora · 2013
A modified decision based unsymmetrical trimmed median filter (MDBUTM) algorithm for the restoration of gray scale, and color video's that are highly corrupted by salt and pepper noise is proposed in this paper. In the Transmission of Videos over channel, Video frames are corrupted by salt and pepper noise (Impulse Noise), due to faulty communication systems. The objective of this paper is to implement a better filtering technique that makes the noisy video frames to noise free video frames. The proposed algorithm replaces the noisy pixel by trimmed median value when 0's and 255's are present in the selected window and when all the pixel values are 0's and 255's then the noise pixel is replaced by mean value of all the elements present in the selected window. This proposed algorithm shows better results than the Standard Median Filter (MF), Decision Based Algorithm (DBA), Modified Decision Based Algorithm (MDBA), and Progressive Switched Median Filter (PSMF). The proposed algorithm is tested against different gray scale and color video frames and it gives better Peak Signal-to-Noise Ratio (PSNR) and Image Enhancement Factor (IEF).