Lecturer, Information Technology Government Polytechnic, Thane
Online published on 27 February, 2018.
The different noise removal methods could be used to remove speckles/dots on an image-Dots can be modeled by impulses (salt-and-pepper or speckle) or continuously varying (Gaussian noise)-Can be removed by taking mean and median values of neighboring pixels (e.g. 3x3 window)-Equivalent to low-pass filtering. Hybrid Graph Laplacian Regularized Regression method of noise removal gave the best result when the type of noise is salt and Pepper and Gaussion noise.
Image Denoising, Hybrid Graph Laplacian Regularized Regression, Salt and Pepper Noise, Gaussion Noise
