Image De-noising and its Methods: A Survey?

An image is considered as a collection of information stored as intensities and the occurrence of noises. The occurrence of noise present in the image causes degradation in the quality of the image. The basic idea behind image processing is how we estimate the correct pixel values. Image De-noising is one of the fundamental problems which is faced in image processing and computer vision .There are various de-noising methods that have been employed to remove noise from the existing image. There are many researches which are still going on to find the best method to remove noise from the image while preserving its fine details. In this paper we are going to discuss different noise models and methods to remove these noises with their various advantages and disadvantages.