Urbanization as measured by the percentage of the total population living in cities.  All 
areas are becoming more urban.  The U.S. and Western Europe are the most urbanized.  The graph 
predicts that the level of urbanization in Southeast Asia, China, and India will reach levels 
currently seen in the U.S. and Western Europe by the 2050s, but will still be below those 
more urbanized areas.  
Error using .*
Matrix dimensions must agree.

Error in plotSpotlight (line 30)
    output = repmat(a,[1 1 3]).*single(im)/255;

Error in plot_individual_user_maps (line 49)
        [heat] = plotSpotlight(im,heatmap,3);