Localization of optic Disc and Macula using Multilevel 2-D Wavelet Decomposition Based on Haar Wavelet Transform

Diabetic retinopathy is one type of condition in which increased blood sugar level causes swelling in the blood vessels, and it leak in retina. We can say that it is effect of diabetes on the eye. In the first stage we have to localize the optic disc and macula. There is need of localizing the optic disc because it is the origin where blood vessels are grown. Ophthalmologist use to study the area near to the optic disc, by observing these they come to know that the retinal blood vessels are normal or abnormal .Optic disc detection helps to detect macula. Macula is dark area on the retina which is near to optic disc, there are no blood vessels are present on the center of the macula .Macula is responsible for sharp vision. We have to localize the macula to study the normality and abnormality of macula. For localization we have use Multi-level 2-D wavelet decomposition. For this work we have use HRF database. For the evaluation of result we have used Receiver Operating Characteristic (ROC) curve, and we have achieved 95% accuracy for localization of optic disc and 93 % accuracy for localization of macula