Blood Vessel Segmentation on Retinal Fundus Image- A Review

Automatic identification of blood vessels in CT images of retina has always been a big challenge since the contrast of images diminishes with respect to the increase in the pixel distance from the center of the image in retinal. The image segmentation blood vessels in retina helps in diagnosing the diseases that are associated with the changes in the retina. Most current techniques focus on developing Preprocessing and Image analysis. This Paper gives the survey on Retinal Image