Abstract
Early detection of the retinal diseases like diabetic retinopathy is fundamental to the avoidance of visual misfortune. An automated Diabetic Retinopathy screening will enable the detection of lesions accurately, thus helping the ophthalmologists. The analysis of retinal abnormalities, for example, exudates, microaneurysms and haemorrhages are essential to detect Non-Proliferative Diabetic Retinopathy and Proliferative Diabetic Retinopathy. The survey includes various methodologies for segmentation of exudates and microaneurysms from retinal fundus images using different image processing techniques. By doing so, the permanent vision loss can be prevented.
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