中文说明：糖尿病
English Description：
Diabetic retinopathy is one of the leading disabling chronic diseases, and one of the leading causes of preventable blindness in the world. Digital colour retinal images are used by the Ophthalmologists for the detection of Diabetic retinopathy. These images are generated in large number during the mass screening of the disease and may result in biased observation due to fatigue. Automated retinal image processing system could save workload of the ophthalmologists and also assist them to extract the normal and abnormal structures in retinal images and help in grading the severity of the disease. For automated screening programs to work robustly efficient image processing and analysis algorithms have to be developed. Algorithms are categorized into 5 groups (image preprocessing, localization and segmentation of the optic disk, segmentation of the retinal vasc