The most significant feature of images is to reduce Gaussian noise which is commonly found in images and make better image quality. In recent years, technological development has significantly improved analyzing images. Spatial filtering is the method of choice in situations when only additive random noise is present. In this paper, an attempt is made to evaluate the performance of the four linear and non-linear filters used for removing noise from the image. The performance of the noise removal process is analyzed, and the results are compared with the previously reported.