<b>Image Filtering Based on GMSK</b> Image Denoising is an important pre processing task which is used before further processing of image. The purpose of denoising is to remove the noise while retaining the edges and other detailed features. This noise gets introduced during the process of acquisition, transmission and reception and storage and retrieval of the data. Due to this there is degradation in visual quality of image. The noises which are of major considerations are Additive White Gaussian Noise AWGN and Impulsive Noise. Denoising, AWGN, MSE, SPN 33-35 Issue-6 Volume-2 Sehba Yousuf | Er. Arushi Baradwaj