Research Article

Detecting Optic Disc on Asians by Multiscale Gaussian Filtering

Figure 5

Steps of the proposed method applied to a fundus image (a). (b) is the scale production of (a). The result of double thresholding on (b) is (c). The thinned vessels of (c) is (d). (e) is the OD vessel candidates after removing pixels with low intensities. The detected OD center is illustrated in (f) by a cross.
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(a)
727154.fig.005b
(b)
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(c)
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(d)
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(e)
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(f)