The principal aim of the image enhancement technique is to modify the attributes in an image to make it more suitable for the given task and specific purpose. During the enhancement process the number of attributes to be modified varies from one to more. Digital image enhancement techniques provide the wide range of choices for improving the visual quality of image. The suitable choice of the technique to be applied is influenced by the imaging equipments, task in hand and viewing conditions. In this paper we use approach for image enhancement using weirner filter which optimize by met heuristics like ant colony optimization (ACO).Results is significance improve PSNR improve up to 28.56 and MSE reduce up to 2.54.