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RETINAL BLOOD VESSEL SEGMENTATION ALGORITHM FOR DIABETIC RETINOPATHY AND ABNORMALITY DETECTION USING IMAGE SUBSTRACTION

Nikhil Amrutkar, Yogesh Bandgar, Sharad Chitalkar, S.L.Tade

The primary cause of blindness in India and worldwide is recognized as Diabetic Retinopathy, which is an eye disorder caused by diabetes.For diagnosis of diabetic retinopathy, ophthalmologists use retinal image of a patient which is known as fundus image. This fundus image is captured using digital camera known as opthalmoscope.This paper presents an automated image processing system which detects the abnormality as Proliferative diabetic retinopathy(PDR) using image substraction technique and Severe diabetic retinopathy(SDR) using blob detection technique. It also gives the severity in percentage from which we get an idea that a patient is on the verge of diabetic retinopathy or not which further helps to avoid blindness