. 2012 Aug 16;12:127. doi: 10.1186/1472-6882-12-127
Copyright ©2012 Li et al.; licensee BioMed Central Ltd.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 4.
The lip color classification with nude eye.