[scikit-learn] Including figures from scikit-learn documentation in scientific publications

[avn at mccme.ru]

Hello,

I'm writing a paper meant for submission to TPAMI and would like to 
include that wonderful figure of clustering algorithms comparison found 
in scikit-learn documentation 
(http://scikit-learn.org/stable/_images/sphx_glr_plot_cluster_comparison_001.png).
So, my question is: can I include the figure PNG file in my paper 
directly (with proper reference, of course) or should I only provide a 
reference to this figure?

With best regards,
-- Valery