Automatic Optic Disc Detection in Color Retinal Images by Local Feature Spectrum Analysis

Figure 8

Results of the proposed method. The green cross represents the detected optic disc center. (a) Uneven optic disc brightness with blood vessels; (b) blurred optic disc appearance; (c) optic disc appearance with peripapillary atrophy; (d) myelinated nerve fibers connected to optic disc margin.

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