Retina vessel segmentation system based on combination of hessian matrix and region growing

The invention discloses a retina vessel segmentation system based on combination of a hessian matrix and region growing. The retina vessel segmentation system comprises a retina image preprocessing unit which is used for extracting a retina image green channel and enhancing the extracted image to improve the contrast; a hessian matrix enhancement unit which re-enhances the image through the hessian matrix and extracts the vessel direction in the retina image; a connected domain classification unit which morphologically classifies the image enhanced by the hessian matrix so as to extract smallvessels; and a region growing unit which performs region growing on the classified image to connect the broken vessel structures in the image so as to enhance the segmentation image and improve the segmentation result. Vessel segmentation of the retina fundus image can be realized by the system, and the algorithm of combination of the hessian matrix and region growing is put forward by using the mode of combining the hess