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. Author manuscript; available in PMC: 2019 Aug 24.
Published in final edited form as: Pattern Recognit. 2018 Oct 9;87:38–54. doi: 10.1016/j.patcog.2018.09.015

Fig. 2.

Fig. 2.

Vessel segmentation illustration. (a) Original XCA image. (b) Initial vessel layer image. (c) RLF image of (b). (d) Locally adaptive thresholding result of (c). (e) Otsu’s global thresholding result of (b). (f) Vessel mask resulting from the combination of (d) and (e).