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. 2014 Apr 29;9(4):e95943. doi: 10.1371/journal.pone.0095943

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© 2014 Yin et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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The blue centreline is rotated counterclockwise around the red central point, to the green solid line, overlapping with some of the white segment pixels.

Inline graphic — The blue centreline is rotated counterclockwise around the red central point, to the green solid line, overlapping with some of the white segment pixels.