文件名称:Introduction
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Color fundus images often show important lighting variations, poor contrast and noise. In order to reduce these imperfections and generate images more suitable for extracting the pixel features demanded in the classification step, a preprocessing comprising the following steps is applied: 1) vessel central light reflex removal, 2) background homogenization, and 3) vessel enhancement. Next, a descr iption of the procedure, illustrated through its application to a STARE database fundus image, is detailed.
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Introduction.doc