Computerized detection of optic disc in diabetic retinal images using background subtraction model

Recently, most of the people working in Medical field need a CAD system to investigate and analyze the diseases to provide appropriate treatment and prevent from diseases in the earlier stage itself In this paper an automatic Optic Disc detection for analyzing and diagnosing the disease level in the fundus images has been introduced The retina has the features like optic disc, macula, fovea, micro aneurysms, exudates. The optic disc is detected and removed, since it has the homogeneity with the abnormal feature like exudates. This CAD system helps the ophthalmologist to do further investigation and prior knowledge about the disease. The proposed approach contains a sequence of steps where the fundus image has been preprocessed by histogram equalization and the optic disc is detected by using background subtraction and contour detection method.