Abstract: This is the research paper, which is based on the Retinopathy. Retinopathy is an eye disorder that is very closely related to diabetes. The full name is Diabetic Retinopathy, and can lead to blindness because it causes the retina to become damaged. When your blood sugar is too high damage can be done to the blood vessels, including those in your eyes. When this happens new blood vessels may develop over the retina causing scar. In this paper we used a DCT Filtering to remove the lighting and the noise from the image. It’s a very unique method through which we can easily remove the noise from the retina .The method is evaluated on the publicly available DRIVE and STARE_DBI. In this paper firstly we extract the RGB image then remove the background noise and last we will apply the DCT Filtering.