Restoration of High Density Salt and Pepper Noisy Gray & Color Videos using MDBUTMF

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. Median filters are the best known non-linear digital filters based on order statistics to solve the present problem. Median filters are known for their capability to remove salt and pepper noise and preserves the shape. The noise detection process to discriminate between uncorrupted pixels and the corrupted pixels prior to applying non-linear filtering is highly desirable to protect the signal details of uncorrupted pixels. In this paper we proposed A Modified Decision Based Unsymmetrical Trimmed Median filter (MDBUTM) algorithm for the restoration of gray scale, and color video frames that are highly corrupted by salt and pepper noise. This proposed algorithm shows better results than the Standard Median Filter (SMF), Decision Based Algorithm (DBA), Modified Decision Based Algorithm (MDBA), and Progressive Switched Median Filter (PSMF). We tested the algorithm against different gray and color video frames and it gives better results with high PSNR and IEF. Keywords—Median Filter, Salt and Pepper noise, Midpoint Filter, Shear Sort, Un-symmetric Trimmed Median Filter.