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. 2015 Apr 1;10(4):e0122332. doi: 10.1371/journal.pone.0122332

Fig 5. Relative importance of Retinex-based inhomogeneities correction.

Fig 5

(A) A randomly chosen image from the DRIVE dataset and expert’s annotation. (B) Vesselness map using local phase filter (top), and the segmentation result (bottom) when the Retinex is applied. (C) Vesselness map using local phase filter (top), and the segmentation result (bottom) when the Retinex is not used.