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Automatic segmentation of the foveal avascular zone in ophthalmological OCT-A images

Fig 4

Vascularity edge identification using the Canny edge detector.

(a) Original OCT-A image (after the top-hat preprocessing step). (b) Results of the vascular edge identification.

Fig 4

doi: https://doi.org/10.1371/journal.pone.0212364.g004