ABSTRACT
Enhancement algorithms are used to reduce the noise present in the image and increase the contrast of the structures in an image. For low-intensity image, where the objects of interest are not properly visible, accurate interpretation can become diffi cult if noise levels are high and the noise will appear as bright spots in the image. In those cases, enhancement and fi ltering will improve the quality of the image and provide a clear image to the human observer. The main aim is to generate a new image that is more suitable for application than the original image. We will fi rst discuss the image enhancement in detail and then cover the fi ltering method.
