Localization of Optic Disk and Exudates Detection in Retinal Fundus Images

Abstract

Abstract Diabetic Retinopathy (DR), is the most prevalent human retina disease. This disease occurred due to diabetes. This disease requires early treatment to avert any malfunction of organs affected by diabetes that could render them dysfunctional. Exudates are the most familiar of diabetic retinopathy earliest signs. In this context, new methods have been developed for the localization and isolation of the optical disk and the discovery of exudates in the retina image. A new algorithm was introduced to localize and segment optical disk prior to process of secretion because it appears in a similar color, density, and in contrast of other features of the retinal image. The algorithm deployed utilizes three steps to extract exudates from physiological properties. In the fundus image, first step depends on the thresholding of intensity, the second is based on Morphological processing and the third step strategically combines a joint of step1 and step 2 to disclose all exudates thereby evicting any sort of bogus positive. The proposed method was applied on several images from the database and thus far concluding accurate and promising results.