. 2009 Feb 22;4:9. doi: 10.1186/1748-717X-4-9
Copyright © 2009 Krengli 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 2.
Alignment of a daily image to the reference surface image.